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參數(shù)資料
| 型號(hào)： | TLC32046I |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Wide-Band Analog Interface Circuit |
| 中文描述： | 寬帶模擬接口電路 |
| 文件頁數(shù)： | 35/57頁 |
| 文件大?。?/td> | 297K |
| 代理商： | TLC32046I |
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3–5
3.3.10
Receive Channel Band-Pass Filter Transfer Function, SCF f
clock
= 288 kHz,
Input (IN+ – IN–) Is A
±
3-V Sine Wave
(see Note 9)
PARMETER
TEST
FREQUENCY
ADJUSTMENT
MIN
TYP
MAX
UNIT
CONDITION
f
≤
100 Hz
f = 200 Hz
f = 300 Hz to 6200 Hz
f = 6200 Hz to 6600 Hz
f = 6600 Hz to 7300 Hz
f = 7600 Hz
f = 8000 Hz
f
≥
8800 Hz
f
≥
10000 Hz
K1
×
0 dB
K1
×
–0.26 dB
K1
×
0 dB
K1
×
0 dB
K1
×
0 dB
K1
×
2.3 dB
K1
×
2.7 dB
K1
×
3.2 dB
K1
×
0 dB
–33
–4
–0.25
–0.3
–29
–2
–25
–1
0.25
0.3
0.5
–0.5
–14
–40
–65
0
0
0
Input signal
reference is 0 dB
Filter gain
dB
–2
–16
3.3.11
Receive and Transmit Channel Low-Pass Filter Transfer Function,
SCF f
clock
= 288 kHz (see Note 9)
TEST
FREQUENCY
RANGE
ADJUSTMENT
ADDEND
MIN
TYP
MAX
UNIT
CONDITION
f = 0 Hz to 6200 Hz
K1
×
0 dB
K1
×
0 dB
K1
×
0 dB
K1
×
2.3 dB
K1
×
2.7 dB
K1
×
3.2 dB
K1
×
0 dB
–0.25
0
0.25
f = 6200 Hz to 6600 Hz
–0.3
0
0.3
Input signal
reference is 0 dB
t i
f = 6600 Hz to 7300 Hz
–0.5
0
0.5
Filter gain
f = 7600 Hz
–2
–0.5
dB
f = 8000 Hz
f
≥
8800 Hz
f
≥
10000 Hz
–16
–14
–40
–65
All typical values are at TA = 25
°
C.
The MIN, TYP, and MAX specifications are given for a 288-kHz SCF clock frequency. A slight error in the 288-kHz SCF
may result from inaccuracies in the MSTR CLK frequency, resulting from crystal frequency tolerances. If this frequency
error is less than 0.25%, the ADJUSTMENT ADDEND should be added to the MIN, TYP, and MAX specifications,
where K1 = 100
[(SCF frequency – 288 kHz)/288 kHz]. For errors greater than 0.25%, see Note 9.
NOTE 9: The filter gain outside of the pass band is measured with respect to the gain at 1 kHz (2 kHz for M version).
The filter gain within the pass band is measured with respect to the average gain within the pass band. The
pass bands are 300 Hz to 7200 Hz and 0 to 7200 Hz for the band-pass and low-pass filters, respectively. For
switched-capacitor filter clocks at frequencies other than 288 kHz, the filter response is shifted by the ratio of
switched-capacitor filter clock frequency to 288 kHz.
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