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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)： | 9/64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
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
dc accuracy – baseband uplink path
PARAMETER
MIN
TYP
MAX
UNIT
ááááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááá
ááááá
mV
ááááááááááááááááááááááááááááááá
dynamic parameters – baseband uplink path
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Absolute gain error relative to VVREF
Measured with 67.7 kHz sinewave
–1.5
0
1.5
dB
100 kHz
–3
dB
200 kHz
–34
dB
Maximum output random modulation spectrum relative to in-band
averagelevel MeasuredbyaverageFFTsofrandomburstsusing
average level. Measured by average FFTs of random bursts using
a window with 30 kHz bandwidth.
250 kHz
–37
dB
400 kHz
–65
dB
600 KHz
–72
dB
800 KHz
–72
dB
smoothing filters characteristics – baseband uplink path
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
μ
s
Group delay
0 Hz to 100 kHz
1.5
I and Q channels gain matching – baseband uplink path
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ááááááááááááááááááááááááááááá
ááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
áááááááááááááááááááááááááááááá
Gain matching between channels
0 Hz to 96 kHz
Programmable with bits IQSEL, G1, and G0
Measured on 67.7 kHZ sinewave
–0.68
–1
–0.42
–0.93
0
–0.27
–0.53
–0.38
1
–0.12
dB
–0.78
–0.63
I and Q gain unbalance
dB
baseband uplink path global characteristics
PARAMETER
MIN
TYP
MAX
UNIT
peak
GMSK phase trajector error
GMSK phase trajectory error
6
°
1.5
°
rms
Power supply rejection
After software calibration through BBAloop
55
dB
timing requirements of baseband uplink path
programmable delays – baseband uplink path (see Figure 1)
MIN
NOM
MAX
UNIT
§
tsu1
th1
Setup time, BENA before APC
↑
Hold time, ramp-down from BENA low
Bits DELU of register BULRUDEL
0
15
1/4-bit
Bits DELD of register BULRUDEL
0
15
1/4-bit
t tf
tr, tf
Transition time APC
Transition time, APC
Bit APCSPD = 0
Bit APCSPD = 1
0
64
1/16-bit
1/8-bit
§Bit is relative to GSM bit = 1/270 kHz. Units can be a fractional part of the GSM bit as noted. Values in the above table are given for system
information only.
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