Motorola A820, A830 Service Manual Block Diagram

Test

connectors

Control
Logic &

Level

Shifting

U400

U00

Antenna Switc h

1

1

2

Coupler/

Detector/

TempComp

IC

WCDMA

Power

Amplifier

PA2001_5W

5109908K55

WCDMA Tx,

EGSM,

Antenna

5109572E38

4

3

Harmonic

Filters

(discrete

components)

FL800

DCS/PCS Tx

Notch Filter

9109403K07

DCS,

PCS

Tx/Rx

Contained in Front-End Module

DCS Rx

1805-1880 MHz

Diplexer

(discrete components)

PCS Rx

1930-1990 MHz

EGSM Rx

925-960 MHz

Coupler/

Detector/

TempComp IC

Coupler/

Detector/

TempComp IC

Loop Filter & Tank Circuit

(discrete components)

U403

Variable

Attenuator

Alpha AV122

5187970L05

FL401

WCDMA Tx RF

Interstage SAW
1920-1950 MHz

9109239M16

WCDMA Rx RF

Interstage SAW

2110-2170 MHz

9109239M13

Talon Filters, Oscillators & Related Components

2-Antenna Version

4809612J35

RX_VCO_CP

TX_I
TX_Q

supply

(discrete

U160

Frac-N

Synthesizer

LMX2353

RX_I

RX_Q

buffered ref. osc.

FL650

9109239M14

FL652

9109239M15

FL651

9103913K14

U802

U801

760 MHz

FL300

Alpha DD02

5187970L13

FL201

U200

MAX2361

WCDMA
Quadrature
Transmitter

U310

MAX2388

WCDMA

LNA/Mixer

U62

5

LIFE

GSM

LNA/VCO/Mixer

5109940K41

EGSM Tx

DCS/PCS Tx

WCDMA Tx IF Ceramic Filter

9109674L14

VTUNE

PROUT

VCOVCC

GSM Power

Amplifier

PA2001_3G

5109908K53

380 MHz

9189034L01

FL150

TX_LO

RX_LO

WCDMA Rx

Splitter

5887480M01

FL310

LO Filter

FL320

IF SAW

190 MHz

U800

Loop Filter & Tank Circuit

Thales TMX L112

9109405J13

Epcos LC33D

9109405J16

2

Superfilter power

supply

VCO_HB_IN

RFOUT1

VCO_LB_IN

RFOUT2

VCO

U150

Buffer

UPC8151TB

5109940K32

(discrete components)

380 MHz

2

VT PROUT

Vcc

U570

Tri-band GSM

Tx VCO

48R09283D78

WCDMA

2330-2360 MHz

4809283D73

U33

0

MAX2309

WCDMA

IF/VCO/Mixer

(discrete components)

2
2

U140

Tx/Rx

VCO

RX_I

RX_Q

Loop Filters

Superfilter power

Loop Filter

components)

2

2

Y500

26 MHz
Crystal

aux

spi

Bluetooth

Antenna

FL5601

Bluetooth Tx

Cleanup Filter

9109239M20

13 MHz

U500

MAGIC_LV

SF_OUT

TX_CP

PRSCINT

Y130

15.36 MHz Reference
Oscillator

(TCXO)

AFC_DAC

RX_SF_OUT

U101

Harmony Lite

WCDMA

WCDMA

Backend

Baseband

Processor

Processor

(discrete

PLL

compon-

ents)

5109879E70

4809718L14

U5601

Bluetooth

T/R Switch

Alpha

AS179-92

5109572E39

FL500

SSI_Rx

I&Q Filter

9188695K02

T5600 (Tx

Balun)

T5601 (Rx

Balun)

5887510M01

WCSP

PCAP

Power &

Audio

Processor

Video

Accessory

U5600

Bluetooth

Broadcom

BCM2033A

5189316L01

Rainbow

CPU

U3000

Y3982

32 kHz RTC

Crystal

4809995L10

12 MHz
Crystal

KSS CX-91F

Motorola Confidential Proprietary