Motorola T720 Schematics

A10

J100

N_GSM_EXC_SW

GSM_EXC_SW

N_DCS_SW

DCS_SW

FL130

FL110

N_DCS_SEL

U110

RX_EN

RVCO

U140

RF_V2

U420
GSM

U430
DCS

GSM_TX

DCS_TX

PA_B+

PA_B+

U400

U100

RX_DCS

PA_B+

RX_GSM

RF_V1

N_GSM_SEL

GSM_TX

DCS_TX

PA_B+

VAPC

FL140

FL120

DCS_SEL

RX_LO

DCS_SEL

U120

N_DCS_SEL

RF_V2

GSM_EXC_EN

DCS_EXC_EN

U300

897-1747MHz

N_GSM_SEL

FL160

SF_OUT

TX_EN

RF_V2

VCO_EN

LO_IN

IF_POSITIVE

IF_NEGATIVE

FEEDBACK

N_GSM_SEL

RF_V2

SWITCHED_V CC

U170

IF_OUT

FL170

400MHz

POWER_CONTR OL

TX_EN

U450

TX_KEY_PAC

POWER_DETE CT_SWITCH

SATURATION_DETECT

RX_EN

U301

HIGH_FREQUE NCY_MODULATION

RF SCHEMATIC PAGE 1/2

RX_TUNE_LINE

TX_TUNE_LINE

RF SCHEMATIC PAGE 2/2

RF_V2

U203

RF_V2

RVCO

RX_SERIAL_CLOCK

RX_SERIAL_FRAME_SYNC

RX_ACQUIRE

RX_SERIAL_DATA

U202

RF_V1

5V

5V

RF_V2

PRESCALER_IN

HIGH_FREQUENCY_MODULATION

RX_CHARGE_PUMP

TX_CHARGE_PUMP

SWITCHED_VCC

IF_IN

AOC_DRIVE

POWER_DETECTOR_SWITCH

TX_KEY_PAC

N_DCS_SELECT
N_GSM_SELECT

SATURATION_DETECT

RF_V2

RF_V1

U201

TX_CLOCK

TX_KEY
MAGIC_SPI_CS

MAGIC_SPI_CLK
MAGIC_SPI_DATA

TX_SERIAL_DATA_IN

13MHz_CLOCK_OUT

CLK_SELECT

DM_CS

RF_V1

Q240

MNCP_VCC

5V

VREF

RF_V2

N_EXC_EN

N_TX_EN

Q700

RF_V2

N_DCS_SELECT

TX_ENABLE

RVCO

Q502

RF_V2

U710

DCS_SEL

VCO_EN

N_GSM_SELECT

GSM_EXCITER_ENABLE

Q701

SUPERFILTER_OUT

GSM_EXCITER_ENABLE

DCS_EXCITER_ENABLE

RF_V2

Y250

26MHz

DCS_EXCITER_ENA BLE

U501

B+

N_GSM_EXC_SW

RF_V2

N_DCS_SELECT

GSM_EXCITER_ENABLE

5V

U501

RX_EN

DCS_SEL

RX_EN

U500

U500

U503

N_DCS_SW

DCS_SW

GSM_EXC_SW

RF_V2

U500

5V

U503