Rf/ifs And Audio Amplifiers

RF/IFs and audio amplifiers Highly integrated solutions for low-voltage, battery-operated applications

RF/IFs and audio amplifiers

Focus applications

} RF/IF building blocks

} Walkie-talkies, amateur radios, family radio services

} Audio amplifiers

} Cordless/wireless phones

} Rail-to-rail op amps

} Pay TV

} Wideband variable-gain amplifiers

} Power/gas/water meter readers

} Transimpedance and post amplifiers

} Baby monitors and elderly phones

} Timers

} Remote keyless entry (garage door openers or any on/off key switch) } Remote control for lighting (OOK)

Frequency

Unlicensed Part 1 frequency allocations 27 MHz

40.66 to 40.70

46 to

50, 53 MHz

72 to

169 to

260 to

901-902 MHz

2.4 GHz

MHz

49 MHz

72, 75 MHz

76 MHz

172 MHz

470 MHz

930-931 MHz

ISM band

940-941 MHz 902-928 MHz

Applications

ISM bands Radio-

FCC Part

controlled

15 periodic

cars and

applications

toys

Baby monitors

Model aircraft:

Hearing

Wireless

Part 15 periodic

902-928 MHz:

50.xx MHz

assistance

microphones

applications:

Cordless phones

Wireless

53.xx MHz

devices

microphones

72.xx MHz

Keyless entry / OOK

75.xx MHz

Wireless data Wireless data and security

Wireless switches (US: 315 MHz

Wireless security

Meter readers

Europe: 433.6 MHz )

Cordless phone

Home Narrowband PCS:

automation

901-902 MHz Family radio

930-931 MHz

services

940-941 MHz

(462.5625 467.7125 MHz)

NXP RF/IFs and audio amplifiers operate in the Unlicensed Part 15 frequency allocations

2

RF/IFs and audio amplifiers

Low-power PCS HAM radio

HAM radio

Building on a history of RF innovation

Our portfolio of highly integrated solutions for low-voltage, batteryoperated applications, which includes RF/IF building blocks, audio amplifiers, timers, and other amplifiers, incorporates the best of our industry-leading expertise in wireless technology. Every product in this category reflects the know-how gained from a history of RF innovation in cellular communications, peer-to-peer wireless networking, RFID tags, and high-end manufacturing. The result is a series of RF solutions that bring high integration and superior performance to a wide range of lowvoltage, battery-operated wireless applications in the Unlicensed Part 15 frequencies.

Wide selection of package options All of the ICs are available in a wide range of package options that support miniaturization and increase design flexibility. We even offer Chip Scale Packaging (CSP), an innovative technique that delivers a footprint nearly as small as the IC itself and many times smaller than a standard SO8 package. Free design kits Free application support We know how vital it is to provide our customers with more than just technology. To make design-in as fast and easy as possible, we support all our specialty analog RF products with readymade design kits and provide in-depth application support – all absolutely free of charge.

RF/IFs and audio amplifiers

3

RF transceivers made simple

NXP makes it easy to create an RF transceiver For the frontend receiver, RF/IF components (or RF MMICs and discrete components) implement an SPDT switch, a low-noise amplifier (LNA), an RF mixer, and a local oscillator (LO). In the backend receiver, an RF/IF receiver IC serves as the PLL synthesizer, and in the transmitter, the design uses RF MMIC and RF discrete components. To complete the solution, other NXP products, such as microprocessors, UARTs, and I2C products, manage the system and perform user-interface functions. Sample applications that use the RF transceiver are shown on the following pages.

Typical RF transceiver block diagram Second IF filter

RF filter

RF input

LNA

First mixer

RF Filter

Second IF filter

Second mixer Demodulator

First LO

RF/IF receiver

Second LO SPDT switch

RSSI

10-bit ADC Reference Xtal oscillator

LPA

VCO

SPI bus

Osc

Low-power CPU with internal or external Flash

SPI II-C

User interface Keyboard and system status I2C I/O I2C LED drivers

4

RF/IFs and audio amplifiers

Receiver data

Dual PLL synthesizer RF filter

External quad circuit

Data out

UART

RS232 Xceiver

Program port

RF/IF building blocks: applications Wireless data transceiver for 2.4-GHz and 900 MHz ISM band 10.7 MHz Second IF filter Second IF filter

RF input

RF filter

2.4-2.5 GHz 902-928 MHz

110.59 MHz

BGA2022 mixer

BGA2003 LNA

First IF filter

Second Mixer

External quad circuit

Demodulator First LO

SPDT switch BAP51-02

Antenna switch control

RF filter

Second LO 99.89 MHz

SPDT switch BAP51-02

BGA6589 PA

SA636DK/01 SA58641DK

VCO Murata VCO

BGA2716 LPA

SA8027DH

Comparator in

SPI bus

T/R control

RSSI

SPI

Ref Xtal oscillator/modulator

TxData out

Squelch

Recovered data

Comparator out

RxData In 8-bit ADC

Low-power CPU P89LPC916 with internal Flash

I2C

UART

I2C bus T/R control

User interface

Antenna switch control

Keyboard LED display

Program port

Family Radio Services walkie-talkie transceiver Second IF filter

455 kHz

RF input

BGA2003 LNA

462-467 MHz Rx / Tx

SA612AD/01 mixer

RF filter

21.4 MHz First IF filter

Mixer Demodulator

First LO: Varicaps BB133 BB179

SA616DK/01 SA58640DK

440 - 457 MHz

SPDT switch BAP64-04/05

Second LO 20.945 MHz

SA8027DH

RF filter

BLT50 PA

Ref Xtal oscillator SPI bus

VCO: PBR951 BB133 BB179

Recovered audio and data

RSSI

Mute control

Comparator in

Oscillator

Comparator out

I2C bus

Dual synthesizer

Data out

LPA

Compressor/ data amp

Tx data input

Tx / Rx control

Keypad

LCD driver

SPI interface SPI bus

Tx data

I2C I2C bus

Rx side duplexer RVCO

Reference oscillator

RSSI SPI

Comparator in Comparator out

Low-power CPU LPC916 with internal Flash

8-bit ADC UART

SA58646BD

PA

LPA

Rx data in

LCD driver

SA58631TK SPI interface

SPI bus

I2C I2C bus UART

Mute

Reference oscillator

RSSI SPI

User interface Keypad

Serial program interface

Compressor/ microphone data amp

Push-to-talk Microphone

RSSI squelch output

Post detection filter

Expandor / earphone amp

Dual synthesizer

TVCO 924 to 928 MHz filter

PLL FM detector

IF amps

Tx side duplexer

Tx / Rx control

User interface

Limiter amps

LNA + quad mixer

Post detection filter

SA58646BD TVCO

PA

Data amp

10.7 MHz ceramic filters

902 to 906 MHz filter

PLL FM detector

IFamps

RF Tx filter

User interface

Full-duplex cordless phone 902-to-928 MHz

Limiter amps

LNA + quad mixer

SA58643DP Tx / Rx switch

Data out

Keyboard LED display

10.7 MHz ceramic filters

RVCO

8-bit ADC

I2C

Data transceiver 902-to-928 MHz/868 MHz

RF RX filter

Speaker amp TDA8541T/N1

Low-power CPU LPC916 with internal Flash

SPI

Microphone amp SA5232D

902 to 928 MHZ or 868 MHz

External quad circuit

Comparator in Comparator out Low-power CPU LPC916 with internal Flash 8-bit ADC

RSSI squelch output

RF/IFs and audio amplifiers



RF/IF building blocks: applications Wireless data transceiver for US and European ISM bands Second IF filter

Second IF filter

SA601DK RF filter

RF input

LNA

SA602A/01 BGA2022 mixer

First IF filter

Mixer External quad circuit

Demodulator

902-928 MHz (US) 868 MHz (Europe) SA636DK/01 SA58641DK

First LO SA620DK

Second LO

RSSI

Squelch

Receiver data

SA58643DP Comparator in

SA8027DH RF filter

PA

Oscillator

Reference Xtal oscillator

SPI

SPI bus

Comparator out

8-bit ADC

Low-power CPU LPC916 with internal Flash I2C

UART

I2C bus

RS232 Xceiver

User interface Keyboard LED display

OOK receiver using SAW oscillator

Receiver for remote control

RF input

315 MHz (US) 434 MHz (Europe)

Antenna 315 MHz (US) 433.6 MHz (Europe)

21.4 MHz crystal filters

RF filter

Mixer

Mixer

Demodulator

SA636DK/01 SA639DH/01

RSSI output

LO

Data output SAW oscillator Logic device LPC901

SA8016DH Reference Xtal oscillator SPI bus

Transmitter for remote control RF output

315 MHz (US) 434 MHz (Europe)

RF filter

PLL synthesizer SA8016DH

BGA6589

PA

Exciter/VCO

Reference Xtal oscillator SPI bus

Oscillator SPI

Low-power CPU LPC916 with internal Flash

I2C

User interface



RF/IFs and audio amplifiers

External quad circuit

Demodulator

SA58641DK

OOK output

Program port

UART

RS232 Xceiver

Program port

RSSI

Comparator in Oscillator SPI IC 2

Squelch

Comparator out

Receiver data

8-bit ADC

Low-power CPU LPC916 with internal Flash

Data out UART

RF/IF building blocks Family

Description

Frequency Bandwidth

Voltage (V) Package(s) Application(s)

range SA601DK

LNA and mixer

1 GHz

900-MHz RF

2.7 to 5.5

SSOP20

SA620DK

LNA, mixer, and VCO

1 GHz

900-MHz RF

2.7 to 5.5

SSOP20

1 GHz

500-MHz RF

4.5 to 8.0

SO8

} Transmitters

DIP8

} Wireless meter readers

SA602AD/01, SA612AD/01 LNA, mixer, and oscillator SA602AN/01, SA612AN/01

} Walkie-talkies

} Wireless local loops } Police, fire radios SA606DK/01,SA607DK/01, Narrowband FM IF receiver with SA616DK/01

150 MHz

audio and RSSI op amps

150-MHz RF

2.7 to 5.5

2-MHz narrowband IF

SSOP20 SO20

SA606D/01, SA607D/01,

SA608DK/01

} Remote meter readers Narrowband FM IF receiver with audio 100 MHz

150-MHz RF

and RSSI op amps

2-MHz narrowband IF

Narrowband FM IF receiver with

150 MHz

frequency check and buffered outputs SA58640DK

Narrowband FM IF receiver with

SA604AD/01, SA614AD/01 FM IF system for 455-kHz and

150-MHz RF

2.7 to 5.5

SSOP20

} Wireless trackers

2.7 to 5.5

SSOP20

} Wireless keyboards

4.5 to 6.0

SSOP20

(shipping/receiving)

2-MHz narrowband IF 100 MHz

frequency check and buffered outputs

150-MHz RF 2-MHz narrowband IF

1 GHz

25-MHz IF

4.5 to 8.0

SO16

} Secure garage-door

1 GHz

500-MHz RF

4.5 to 8.0

S020

} Wireless receivers

SSOP20

} Optical readers

SSOP20

} Set-top boxes

10.7-MHz FM IF SA605D/01, SA615D/01

data module } Hearing aids

SA616D/01 SA676DK/01

} Automotive control channel

High-performance mixer and

openers

SA605DK/01, SA615DK/01 FM IF system for 455-kHz and

25-MHz IF

10.7-MHz FM IF SA636DK/01

High-performance mixer and

500 MHz

wideband FM IF system with fast RSSI

500-MHz RF

2.7 to 5.5

25-MHz wideband IF

} Radar detectors

and power-down mode SA58641DK

High-performance mixer and

} Crane remote 500 MHz

wideband FM IF system with fast RSSI

500-MHz RF

4.5 to 6.0

SSOP20

25-MHz wideband IF

} Truck tracker } High-end audio equipment

and power-down mode

for performance halls } Car toll readers

SA639DH/01

Mixer and FM IF system with fast RSSI, 500 MHz

500-MHz RF

power-down mode, post-detector-

25-MHz wideband IF

2.7 to 5.5

TSSOP24

} Patient monitoring systems

2-MHz RF

2.7 to 5.5

TSSOP20

} Digital walkie-talkies

N/A

3.0 to 5.0

S08

} A ntenna switches for

filter amplifier, and programmable data switch SA647DH

Narrowband digital IF receiver system 150 MHz with fast RSSI

SA630D/01

Single-pole, double-throw (SPDT)

SA630UK

switch

SA58643DP

Single-pole, double-throw (SPDT)

1 GHz

WL-CSP8 1 GHz

N/A

3.0 to 5.0

TSSOP8

switch SA58646

UHF/900MHz

a variety of wireless applications } Set-top boxes

1 GHz

10.7MHz Limiting IF & 2.9 to 5.5

LQFP64

coilless detector

} walkie-talkies } 868 MHz, 902-928 MHz data transceivers } 902-928 MHz Full-duplex cordless phones } e-metering data transceivers

SA8027DH

Low-power dual frac-N PLL synthesizer 2.5 GHz

N/A

2.7 to 3.6

TSSOP20

} 500-MHz to 2.5-GHz wireless equipment } Cellular phones } WLAN } Portable, battery-powered radio equipment

RF/IFs and audio amplifiers



RF/IF specifications Narrowband RF/IF specifications Device

ICC (max) VCC range Mixer gain

RSSI dynamic RSSI 1

RSSI 2

RSSI 3

RSSI 4

RSSI 5

(mA)

range (typ)

RFin @ -118 dBm

RFin @ -110 dBm

RFin @ -68 dBm

RFin @ -50 dBm

RFin @ -23 dBm

(dB)

(Vdc)

(Vdc)

(Vdc)

(Vdc)

(Vdc)

(V)

(dB)

SA606

4.2

2.7 to 6.0

13.5 to 19.5

90

0.3 typ, 0.8 max

0.7 min to 1.8 max

SA616

5.0

2.7 to 6.0

11 min

80

0.3 typ, 0.8 max

0.7 min to 2.0 max

1.2 min to 2.5 max

SA676

5.0

2.7 to 6.0

10 min

70

0.5 min to 0.9 max

1.7 typ, 2.2 max

SA58640

6.0

4.5 to 6.0

10 min

70

0.5 min to 1.0 max

1.7 typ, 2.4 max

1.0 min to 2.5 max

Wideband RF/IF specifications Device

VCC range

ICC (max)

Data

(V)

(mA)

rate *

SA602/604 4.5 to 8.0

SINAD

IF

Audio

Power- Low

bandwidth matching

& data

down

(MHz)

pins

mode

455 kHz

Yes

No

No

No

No

No

No

455 kHz

Yes

No

No

No

No

No

No

10.7 MHz

No

Yes

Yes

Yes

Yes

Yes

No

10.7 MHz

No

Yes

No

Yes

Yes

Yes

No

No

Yes

Yes

Yes

Yes

Yes

Yes

2.4/3.3 @ 6 V 100 kbps -120 dBm / 0.22 μV 25

Filter

Fast Integrated Wideband Post-

voltage RSSI RSSI op

data out

amp

detection amp

RF: 45 MHz IF: 455 kHz Tone: 1 kHz Deviation: 8 kHz SA605

4.5 to 8.0

5.7 @ 6 V

100 kbps -120 dBm / 0.22 μV 25 RF: 45 MHz IF: 455 kHz Tone: 1 kHz Deviation: 8 kHz

SA636

2.7 to 5.5

6.5 @ 3 V

1.2 Mbps -111 dBm / 0.54 μV 25 RF: 240 MHz IF: 10.7 kHz Tone: 1 kHz Deviation: 125 kHz

SA58641

4.5 to 5.5

7.5 @ 5 V

1.2 Mbps -95 dBm

25

RF: 240 MHz

IF

IF: 10.7 kHz Tone: 1 kHz Deviation: 125 kHz SA639

2.7 to 5.5

8.3 @ 3 V

2 Mbps

-111 dBm / 0.54 μV 25

10.7 MHz

RF: 110.592 MHz IF: 9.8 kHz Tone: 576 kHz Deviation: 288 kHz * Approximate maximum data rate. With some modifications, higher data rates are possible.

(BD)



RF/IFs and audio amplifiers

Receiver enabled supply current typ (mA)

Receiver/transmitter supply current type (mA)

LNA/mixer voltage grain typ (dB)

IF/limiter gain typ (dB)

RSSI dynamic range typ (dB)

Coilless detector frequency range (MHz)

RF frequency range (MHz)

Reference oscillator frequency range (MHz)

Programmable clock divider with buffered output divide ratios

Image reject mixer

Tx & Rx VCOs use external inductors

Compander

Carrier detect/battery detect

Programmable data amplifier (slicer)

Microphone preamp

Modulation input

3-wire serial bus

SA58646 LQFP64 2.9 to 5.5

Standby current (typ)(mA)

Supply voltage range (V)

Package

Device

UHF/900 MHz wireless transceiver

1

55

72

22

90

68

No

7.0-15

300-1200

4.0-20

2, 2.5, 4,

•

•

•

•

•

•

•

1, 128

Amplifiers and timers Audio amplifiers Type number

Description

Package(s)

Applications

TDA1308/N2 TDA1308T/N2 TDA1308TT/N2

Headphone driver

DIP8 SO8 TSSOP8

TDA1308ATT/N2 TDA1308AT/N2

Low-voltage headphone driver

TSSOP8 SO8

TDA1308AUK

Low-voltage headphone driver

WL-CSP8

} Portable consumer products }Cellular phones } PDAs } Headphones } Hearing aids } Monitors } Notebooks } LCD TV

TDA8541T/N1

1-W BTL audio amplifier

SO8

} Portable consumer products } Personal computers } Telephony

TDA8542AT/N1

2x1.5-W BTL audio amplifier

SO20

TDA8542TS/N1

2x0.7-W BTL audio amplifier

SSOP20

TDA8543T/N1

1.4-W BTL audio amplifier

SO16

} Portable consumer products } Personal computers } Motor-driver (servo)

TDA8547TS/N1

2x0.7-W BTL audio amplifier with output channel switch

SSOP20

} Telecommunication equipment } Portable consumer products } Personal computers } Motor-driver (servo) } Walkie-talkies

SA58631TK SA58632BS

3-W BTL audio amplifier 2x2.2-W BTL audio amplifier

HVSON8 HVQFN20

} Portable consumer products } Personal computers } Professional & amateur mobile radio } USB speakers } Portable gaming } Educational toys

SA58670BS

2 x 2-W Class D audio amplifier

HVQFN20

} Portable consumer products } Cellphone speaker/phone drivers } USB speakers } MP3 players } iPod speakers

SA58671UK

2 x 1.3-W Class D audio amplifier

WL-CSP16

} Portable consumer products } Cellphone speakerphone/headphone drivers } USB speakers } MP3 players } iPod speakers

Type number

Description

Package(s)

Applications

NE/SA/5232N/01 NE/SA/5232D/01

Low-voltage dual rail-to-rail op amp

DIP8 SO8

NE/SA5234N/01 NE/SA5234D/01

Low-voltage quad rail-to-rail op amp

DIP14 SO14

} Automotive electronics } Signal conditioning and sensing amplification } Portable instrumentation } Test and measurement } Medical monitors and diagnostics } Remote meters } Audio equipment } Security systems } Communications } Pagers } Cellular telephone } LAN } 5-V datacom bus } Error amplifier in motor drives } Transducer buffer amplifier

Rail-to-rail op amps

RF/IFs and audio amplifiers



Amplifiers and timers Wideband variable gain amplifiers Type number

Description

Package

Applications

SA5209D

Low-voltage wideband variable gain amplifier

SO16

} Linear AGC systems

SA5219D

Cascadable low-voltage wideband variable

SO16

} Very linear AM modulator } RF balun

gain amplifier

} Cable TV multi-purpose amplifier } Fiberoptic AGC } Radar } User-programmable fixed-gain block } Video } Satellite receivers } Cellular communications

Transimpedance and post amplifiers Type number

Description

Package

Applications

SA5211D

Transimpedance amplifier (180 MHz)

SO14

} Fiberoptic receivers (analog and digital)

SA5212AD

Transimpedance amplifier (140 MHz)

SO8

} Current-to-voltage converters } Wideband gain block } Medical and scientific instrumentation } Sensor preamplifiers } Single-ended-to-differential conversion } Low-noise RF amplifiers } RF signal processing

SA5214D

Post amplifier with link status indicator

SO20

} Fiberoptics } Communication links in industrial and/or telecom environment with high EMI/RFI } Local area networks (LANs) } Metropolitan area networks (MANs) } SONET } RF limiter

SA5217D

Post amplifier with link status indicator

SO20

} Fiberoptics } Communication links in industrial and/or telecom environment with high EMI/RFI } Local area networks (LANs) } Synchronous optical networks (SONET) STS-1 } RF limiter } 223-1 pseudo-random bit stream

Timers Type number

Description

Temperature range (°C)

Package(s)

AU7555D/01

CMOS timer

-40 to +125

SO8

ICM7555D/01

CMOS timer

0 to +70

SO8

CMOS timer

-40 to +85

ICM7555N/01 ICM7555ID/01 ICM7555IN/01

10

RF/IFs and audio amplifiers

DIP8 SO8 DIP8

RF glossary

RF – Radio Frequency The carrier frequency or the frequency of the propagation media (e.g. air, cable, wireline, etc.). IF – Intermediate Frequency A frequency lower than the RF and generally the frequency at which demodulation/modulation is performed. Down conversion Conversion of the RF or IF frequency to a lower IF frequency by a mixer/local oscillator (LO). Up conversion Conversion of the IF frequency to a higher IF or RF frequency. FM – Frequency Modulation The RF signal is changed in frequency by the modulating signal (e.g. voice, data). FM receiver Uses a limiting IF and a quadrature demodulator to recover the modulating signal. Quadrature demodulator

DBM – Double Balanced Mixer A special circuit that outputs the sum and difference signal while minimizing the RF and LO signals. LO – Local Oscillator Derived from an external active device or an on-chip transistor oscillator. Image Frequency An unwanted RF frequency at the mixer input that gives the same IF frequency at the mixer output as the desired RF frequency. Single Conversion/Dual Conversion Some receivers use one IF (single conversion). A dualconversion receiver downconverts twice (to two different IFs) to enable better filtering of image frequencies. NBFM – Narrowband FM Used in voice and low speed data (<9.6 kbps). WBFM – Wideband FM Used in broadcast radio and high-speed data (>10 kbps). Sensitivity The minimum input signal required for a receiver to deliver an acceptable output.

Used to recover the modulating signal while minimizing the IF signal.

Selectivity The ability of a receiver to pass the desired frequency and reject all others.

RF/IFs and audio amplifiers

11

www.nxp.com © 200 NXP B.V. All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: November 2006 Document order number: 9397 750 15672 Printed in the Netherlands