TCM4400 datasheet(13/64 Pages) TI

13 / 64 page

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

automatic Gain Control (AGC)

AGC 10-bit DAC

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Integral nonlinearity

Best fitting line

–1

LSB

Differential nonlinearity

–1

LSB

Settling time

From AUXAGC load

100

µs

AGC output stage

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output voltage with code max

1.9

2.2

2.4

Offset voltage with code 000

0.18

0.24

0.30

Output voltage in power down

DC power supply sensitivity

Output impedance in power down

200

Ω

Load resistance

Ω

Load capacitance

automatic frequency control (AFC)

AFC 13-bit DAC

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

AFCCK1=1

AFCCK0 = 1

Sampling frequency f

AFCCK1=1

AFCCK0 = 0

MHz

Sampling frequency, fs

AFCCK1=0

AFCCK0 = 1

0.5

MHz

AFCCK1=0

AFCCK0 = 0

0.25

Integral nonlinearity from 0 to 75% output range

Best fitting line

±1

LSB

Differential nonlinearity from 0 to 75% output range

±1

LSB

Settling time

µs

DC power-supply sensitivity

Over power supply range

AFC output stage

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Internal output resistance (

±30 % tolerance)

Ω

External filtering capacitance

Output voltage with code max

2.0

2.5

2.8

Output voltage with code min

Output voltage in power down

Output impedance in power down

Ω

Output impedance in power down

Ω

TCM4400 Datasheet(PDF) 13 Page - Texas Instruments

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