參數(shù)資料
型號(hào): TCM4400ETQFP
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的基帶和語音的A / D和D / A射頻接口電路
文件頁數(shù): 15/64頁
文件大?。?/td> 888K
代理商: TCM4400ETQFP
TCM4400E
GSM/DCS BASEBAND AND VOICE A/D
AND D/A RF INTERFACE CIRCUIT
SLWS082A – JULY 1999 – REVISED MARCH 2000
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
voice uplink path (continued)
frequency response of the voiceband uplink path
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
100 Hz
–37.4
–20
150 Hz
–25.9
–15
200 Hz
–16.5
–10
300 Hz
–2
–1.46
1
1000 Hz
Reference point is 1000 Hz
0
Frequency response (Gain relative to reference gain at
1 kHz)
2000 Hz
–1.5
–0.58
1
dB
3000 Hz
–1.5
–0.77
1
3400 Hz
–2
–1
1
3600 Hz
–12.4
–6
3800 Hz
–23.3
–18
4000 Hz
>4600 Hz
–35
–30
–40
>–52
psophometric SNR vs signal level of the voiceband uplink path
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
3 dBm0
35
0 dBm0
40
–5 dBm0
42
Signal to noise + distortion
–10 dBm0
45
dB
–20 dBm0
42
–30 dBm0
40
–40 dBm0
30
–45 dBm0
25
Maximum idle channel noise
0 Hz –4 kHz
–72
dBm0
Crosstalk with the downlink path
Downlink path loaded with 150
–66
dB
gain characteristics of the voiceband uplink path
PARAMETER
TEST CONDITIONS
at 0dBm0 and 1KHz
MIN
–1
TYP
MAX
UNIT
Absolute gain error
1
dB
at –10dBm0 and 1KHz
–11
–10
–9
3 dBm0
–0.25
0.25
0 dBm0
–0.25
0.25
–5 dBm0
–0.25
0.25
Gain tracking error. Over the range 3 dBm0 to – 45 dBm0 at
1 kHz with reference –10 dBm0
–10 dBm0
Reference level
0
dB
–20 dBm0
–0.25
0.25
–30 dBm0
–0.25
0.25
–40 dBm0
–45 dBm0
–0.35
–0.50
0.35
0.50
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