TCM4400E Datasheet, PDF (16/64 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
voice downlink path
global characteristics of voice downlink path
PARAMETER
Maximum output swing ^{With 5% distortion and with 150 Ω}
(EARP – EARN)
With 5% distortion and with 33 Ω
Minimum output resistive load at EARP_EARN
TEST CONDITIONS
Output swing 3.9Vpp
Output swing 1.5Vpp
Maximum output capacitive load at EARP_EARN
Earphone amplifier gain
Earphone amplifier state in power down
Maximum output swing (AUXO), 5% distortion, maximum
Minimum output resistive load at AUXO
Load = 1 kΩ
AC coupled
Maximum output capacitive load at AUXO
Auxo amplifier gain
Auxo amplifier state in power down
VOLCTL code = 010
Volume control gains
VOLCTL code = 110
VOLCTL code = 000 (default & reference)
VOLCTL code = 100
VOLCTL code = 011
VOLCTL code =101 or 001 or 111 (mute)
VDLPGA code = 0000 (default) –6 dB
VDLPGA code = 0001
–5 dB
VDLPGA code = 0010
–4 dB
VDLPGA code = 0011
VDLPGA code = 0100
–3 dB
–2 dB
PGA gain steps
VDLPGA code = 0101
VDLPGA code = 0110 (ref.)
–1 dB
0 dB
VDLPGA code = 0111
1 dB
VDLPGA code = 1000
VDLPGA code = 1001
2 dB
3 dB
VDLPGA code = 1010
4 dB
VDLPGA code = 1011
VDLPGA code = 1100
5 dB
6 dB
VDLST code = 1101
–23 dB
VDLST code = 1100
VDLST code = 0110
–20 dB
–17 dB
VDLST code = 0010
–14 dB
Sidetone gain steps
VDLST code = 0111
VDLST code = 0011
–11 dB
–8 dB
VDLST code = 0000 (ref.)
–5 dB
VDLST code = 0100
VDLST code = 0001
–2 dB
1 dB
VDLST code = 1000
Mute
Power supply rejection, 0 Hz –100 kHz
In the band
NOTE: All parameters are given for a 150 Ω load, unless specified.
MIN
3.1
1.2
120
30
1.6
1.0
–1
–7
–19
–25
–6.5
–5.5
–4.5
–3.7
–2.3
–1.7
0.5
1.4
2.6
3.4
4.3
5.5
–24.6
–21.1
–18.3
–14.8
–12.3
–8.8
–5.9
–2.1
0.7
TYP
3.92
1.5
150
33
0
Hi-Z
1.96
1.2
–6
Hi-Z
0
–6
–12
–18
– 24
–6.0
–5.0
–4.0
–3.2
–1.8
–1.2
0
1.0
1.9
3.1
3.9
4.8
6.0
–24.1
–20.6
–17.8
–14.3
–11.8
–8.3
–4.8
–1.6
1.2
–55
60
MAX
100
100
1
–5
–17
–23
–40
–5.5
–4.5
–3.5
–2.7
–1.3
–0.7
1.5
2.4
3.6
4.4
5.3
6.5
–22.6
–18.5
–17.3
–13.8
–11.3
–7.8
–4.3
–1.1
1.7
–50
UNIT
Vpp
Ω
Ω
pF
dB
Vpeak
kΩ
pF
dB
dB
dB
dB
dB
16
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