TCM4400EPET datasheet(5/64 Pages) TI

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TCM4400E

GSM/DCS BASEBAND AND VOICE A/D

AND D/A RF INTERFACE CIRCUIT

SLWS082A – JULY 1999 – REVISED MARCH 2000

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Terminal Functions

TERMINAL

NAME

NO.

I/O

DESCRIPTION

NAME

QFP

BGA

ADCMID

I/O

Reference voltage of auxiliary A/D converters; decoupling only (analog)

ADIN1

Auxiliary 10-bit ADC input 1 (analog)

ADIN2

Auxiliary 10-bit ADC input 2 (analog)

ADIN3

Auxiliary 10-bit ADC input 5 (analog)

ADIN4

Auxiliary 10-bit ADC input 4 (analog)

ADIN5

Auxiliary 10-bit ADC input 3 (analog)

AFC

Automatic frequency control DAC output (analog)

AGC

H10

Automatic gain control DAC output (analog)

APC

G10

Automatic power control DAC output (analog)

AUXI

Auxiliary (high-level) speech signal input (analog)

AUXO

Auxiliary downlink (voice codec) amplifier output, single-ended (analog)

AVDD1

Analog positive power supply (bandgap, internal common-mode generator, bias current generator).

AVDD2

Analog positive power supply (baseband CODEC)

AVDD3

Analog positive power supply (auxiliary RF functions)

AVDD4

Analog positive power supply (voice codec)

AVDD5

Analog positive power supply (output stages of auxiliary RF functions).

AVSS1

Analog negative power supply (bandgap, internal common-mode generator, bias current generator).

AVSS2

D10

Analog negative power supply (baseband CODEC)

AVSS3

Analog negative power supply (auxiliary RF functions)

AVSS4

Analog negative power supply (voice codec)

BCAL

Baseband uplink or downlink offset calibration enable (timing interface)

BCLKR

I/O

DSP serial interface clock input. This clock signal is provided by the DSP or the TCM4400E (digital/3-state).

BCLKX

DSP serial interface clock output. The frequency is the same as MCLK (digital/3-state).

BDR

DSP serial interface serial data input (digital)

BDX

DSP serial interface serial data output (digital/3-state)

BENA

Burst transmit or receive enable (depends on status of BULON and BDLON) (digital)

BDLON

Power on of baseband downlink (timing interface)

BFSR

DSP serial interface receive frame synchronization input (digital)

BFSX

DSP serial interface transmit frame synchronization output (digital/3-state)

BDLIN

In-phase baseband input (–) downlink path (analog)

BDLIP

In-phase baseband input (+) downlink path (analog)

BDLQN

E10

Quadrature baseband input (–) downlink path (analog)

BDLQP

Quadrature baseband input (+) downlink path (analog)

BULIN

In-phase baseband output (–) uplink path (analog)

BULIP

B10

In-phase baseband output (+) uplink path (analog)

BULON

Serial clock input (serial interface) (digital)

BULQN

Negative quadrature baseband output. BULQN is an uplink path (analog)

BULQP

C10

Positive quadrature baseband output. BULQN is an uplink path (analog)

DVDD1

Digital positive power supply (baseband and timing serial interfaces)

DVDD2

Digital positive power supply (baseband CODEC)

DVDD3

J10

Digital positive power supply (auxiliary RF functions)

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