TCM4400E Datasheet, PDF (12/64 Pages) Texas Instruments – GSM/DCS BASEBAND AND VOICE A/D AND D/A RF INTERFACE CIRCUIT

TCM4400E
GSM/DCS BASEBAND AND VOICE A/D
AND D/A RF INTERFACE CIRCUIT
SLWS082A – JULY 1999 – REVISED MARCH 2000
automatic power control (APC)
APC level (8-bit DAC)
PARAMETER
Integral nonlinearity (best fitting)
Differential nonlinearity
Settling time
TEST CONDITIONS
Shaper at maximum full scale Load 10 kΩ, 50 pF
APC shaper (5-bit DAC)
PARAMETER
Integral nonlinearity (best fitting )
Differential nonlinearity
Settling time†
† _{Value given for system information only.}
APC output stage
PARAMETER
Output voltage at shape=31 & level =255
Output voltage at shape=0 & level=xx
Output voltage at shape=0 & level =xx
Output voltage at shape=xx & level = 0
Output voltage in power-down
DC power supply sensitivity
Output impedance in power-down
Load resistance
Load capacitance
TEST CONDITIONS
TEST CONDITIONS
Bit APCMODE = 0
Bit APCMODE =1
MIN TYP MAX UNIT
–1
1
LSB
–1
1
10 µs
MIN TYP MAX UNIT
–1
1 LSB
–1
1 LSB
1 µs
MIN TYP MAX UNIT
2.0 2.2 2.4 V
0
20 mV
80 120 160 mV
0
5 mV
0
V
1%
20
Ω
10
kΩ
50 pF
monitoring ADC
10-bit ADC
PARAMETER
Integral nonlinearity (Best fitting)
Differential nonlinearity
Conversion time†
Input range
Input leakage current
Input capacitance
† _{Value given for system information only.}
TEST CONDITIONS
Input signal range < 0.95 VVREF
Input signal range < 0.95 VVREF
MIN TYP MAX UNIT
–4
4 LSB
–2
2 LSB
10
µs
0
VVREF V
–10
10
µA
25
pF
12
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