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参数资料
| 型号： | TLC32047C |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | Wide-Band Analog Interface Circuit |
| 中文描述： | 宽带模拟接口电路 |
| 文件页数： | 40/61页 |
| 文件大小： | 303K |
| 代理商： | TLC32047C |
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3–6
3.3.11
Receive and Transmit Channel Low-Pass Filter Transfer Function,
SCF f
clock
= 432 kHz (see Note 9)
TEST
CONDITION
RANGE
PARAMETER
FREQUENCY
ADJUSTMENT
ADDEND
MIN
TYP
MAX
UNIT
f = 0 Hz to 9300 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 = 9300 Hz to 9900 Hz
–0.3
0
0.3
Input signal
reference is 0 dB
f = 9900 Hz to 10950 Hz
–0.5
0
0.5
Filter gain
f = 11.4 kHz
–5
–2
–0.5
dB
f = 12 kHz
f
≥
13.2 kHz
f
≥
15 kHz
–16
–14
–40
–60
All typical values are at TA = 25
°
C.
The MIN, TYP, and MAX specifications are given for a 432-kHz SCF clock frequency. A slight error in the 432-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 – 432 kHz)/432 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. The filter gain within the
pass band is measured with respect to the average gain within the pass band. The pass bands are 450 Hz
to 10.95 kHz and 0 to 10.95 kHz for the band-pass and low-pass filters, respectively. For switched-capacitor
filter clocks at frequencies other than 432 kHz, the filter response is shifted by the ratio of switched-capacitor
filter clock frequency to 432 kHz.
3.4
Operating Characteristics Over Recommended Operating Free-Air
Temperature Range, V
CC+
= 5 V, V
CC–
= –5 V, V
DD
= 5 V
Receive and Transmit Noise (Measurement Includes Low-Pass and Band-Pass
Switched-Capacitor Filters)
PARAMETER
TEST CONDITIONS
broadband with (sin x)/x
3.4.1
MIN
TYP
280
MAX
500
UNIT
Transmit
noise
broadband without (sin x)/x
DX = input = 00000000000000,
constant input code
250
450
μ
V rms
0 to 12 kHz with (sin x)/x
250
400
0 to 12 kHz without (sin x)/x
240
400
Receive noise (see Note 10)
Inputs grounded gain = 1
Inputs grounded, gain = 1
300
18
500
μ
V rms
dBrnc0
All typical values are at TA = 25
°
C.
NOTE 10: The noise is computed by statistically evaluating the digital output of the A/D converter.
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相关代理商/技术参数 |
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|---|---|
| TLC32047CFN | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
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| TLC32047I | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
| TLC32047IFN | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
| TLC32047IN | 制造商:TI 制造商全称:Texas Instruments 功能描述:Wide-Band Analog Interface Circuit |
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