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參數(shù)資料
| 型號(hào)： | TCM4400EGGM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | GSM/DCS BASEBAND AND VOICE A/D AND D/A RF INTERFACE CIRCUIT |
| 中文描述： | 的GSM / DCS的基帶和語(yǔ)音的A / D和D / A射頻接口電路 |
| 文件頁(yè)數(shù)： | 16/64頁(yè) |
| 文件大?。?/td> | 888K |
| 代理商： | TCM4400EGGM |
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TCM4400E
GSM/DCS BASEBAND AND VOICE A/D
AND D/A RF INTERFACE CIRCUIT
SLWS082A – JULY 1999 – REVISED MARCH 2000
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
voice downlink path
global characteristics of voice downlink path
PARAMETER
With 5% distortion and with 150
With 5% distortion and with 33
TEST CONDITIONS
MIN
3.1
TYP
3.92
MAX
UNIT
Maximum output swing
Maximum out ut swing
(EARP – EARN)
Vpp
1.2
1.5
Minimum output resistive load at EARP EARN
Minimum output resistive load at EARP_EARN
Output swing 3.9Vpp
120
150
pF
Output swing 1.5Vpp
30
33
Maximum output capacitive load at EARP_EARN
100
Earphone amplifier gain
0
dB
Earphone amplifier state in power down
Hi-Z
Maximum output swing (AUXO), 5% distortion, maximum
Load = 1 k
AC coupled
1.6
1.96
Vpeak
k
pF
Minimum output resistive load at AUXO
1.0
1.2
Maximum output capacitive load at AUXO
100
Auxo amplifier gain
–6
dB
Auxo amplifier state in power down
Hi-Z
VOLCTL code = 010
–1
0
1
VOLCTL code = 110
–7
–6
–5
Volume control gains
VOLCTL code = 000 (default & reference)
–12
dB
VOLCTL code = 100
–19
–18
–17
VOLCTL code = 011
–25
–24
–23
VOLCTL code =101 or 001 or 111 (mute)
–40
VDLPGA code = 0000 (default)
–6 dB
–6.5
–6.0
–5.5
VDLPGA code = 0001
–5 dB
–5.5
–5.0
–4.5
VDLPGA code = 0010
–4 dB
–4.5
–4.0
–3.5
VDLPGA code = 0011
–3 dB
–3.7
–3.2
–2.7
VDLPGA code = 0100
–2 dB
–2.3
–1.8
–1.3
VDLPGA code = 0101
–1 dB
–1.7
–1.2
–0.7
PGA gain steps
VDLPGA code = 0110 (ref.)
0 dB
0
dB
VDLPGA code = 0111
1 dB
0.5
1.0
1.5
VDLPGA code = 1000
2 dB
1.4
1.9
2.4
VDLPGA code = 1001
3 dB
2.6
3.1
3.6
VDLPGA code = 1010
4 dB
3.4
3.9
4.4
VDLPGA code = 1011
VDLPGA code = 1100
5 dB
6 dB
4.3
5.5
4.8
6.0
5.3
6.5
VDLST code = 1101
–23 dB
–24.6
–24.1
–22.6
VDLST code = 1100
–20 dB
–21.1
–20.6
–18.5
VDLST code = 0110
–17 dB
–18.3
–17.8
–17.3
VDLST code = 0010
–14 dB
–14.8
–14.3
–13.8
Sidetone gain steps
VDLST code = 0111
–11 dB
–12.3
–11.8
–11.3
dB
VDLST code = 0011
–8 dB
–8.8
–8.3
–7.8
VDLST code = 0000 (ref.)
–5 dB
–5.9
–4.8
–4.3
VDLST code = 0100
–2 dB
–2.1
–1.6
–1.1
VDLST code = 0001
1 dB
0.7
1.2
1.7
VDLST code = 1000
Mute
–55
–50
Power supply rejection, 0 Hz –100 kHz
NOTE: All parameters are given for a 150
load, unless specified.
In the band
60
dB
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