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参数资料
| 型号： | TCM320AC46CDW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封装： | SOIC-20 |
| 文件页数： | 3/19页 |
| 文件大小： | 249K |
| 代理商： | TCM320AC46CDW |
TCM320AC46
GENERALPURPOSE AUDIO INTERFACE FOR DSP
SLWS001 D4091, JUNE 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
11
transmit gain and dynamic range, companded or linear mode,
-law or A-law, VCC = 5 V, TA = 25°C (unless
otherwise noted) (see Notes 5 and 6)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Transmit reference-signal level (0 dB) (see Note 7)
Linear mode selected
1.001
Vrms
Transmit reference-signal level (0 dB) (see Note 7)
Companded mode selected,
-law
0.982
Vrms
Overload-signal level
Linear mode selected
4
VPP
Overload-signal level
Companded mode selected,
-law
4
VPP
Absolute gain error
0-dB input signal
±2
dB
MICIN to DOUT at 3 dBm0 to 40 dBm0
±0.8
Gain error with input level relative to gain at 10 dB
MICIN to DOUT at 41 dBm0 to 50 dBm0
±2
dB
Gain error with input level relative to gain at 10 dB
MICIN to DOUT at 51 dBm0 to 55 dBm0
±2.5
dB
Gain variation
VCC ± 10%,
TA = 0°C to 70°C
±0.5
dB
transmit filter transfer, linear mode or
-law selected, over recommended ranges of supply voltage and
free-air temperature, CLK = 2.048 MHz, FSX = 8 kHz (see Note 6)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Input signal = 50 Hz
10
0
Input signal = 200 Hz
1.8
0
Gain relative to input signal gain at
Input amplifier set for unity gain,
Input signal = 300 Hz to 3 kHz
±0.35
Gain relative to input signal gain at
1.02 kHz
Input amplifier set for unity gain,
noninverting maximum gain output signal
Input signal = 3.3 kHz
0.55
0.2
dB
1.02 kHz
noninverting maximum gain output signal
at MICIN is 0 dB
Input signal = 3.4 kHz
2.8
0
dB
Input signal = 4 kHz
11
Input signal
≥4.6 kHz
30
transmit idle channel noise and distortion, companded mode,
-law, over recommended ranges of supply
voltage and operating free-air temperature (see Note 8)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Transmit noise, C-message weighted
MICIN connected to MICGS through a 10-k
resistor
27
dBrnC0
MICIN to DOUT at 0 dBm0 to 30 dBm0
32
Transmit signal-to-distortion ratio with sine-wave input
MICIN to DOUT at 31 dBm0 to 40 dBm0
25
dB
Transmit signal-to-distortion ratio with sine-wave input
MICIN to DOUT at 41 dBm0 to 45 dBm0
18
dB
transmit idle channel noise and distortion, linear mode, over recommended ranges of supply voltage and
operating free-air temperature (see Notes 6 and 8)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Transmit noise
MICIN connected to MICGS through a 10-k
resistor
60
dB
MICIN to DOUT at 0 dBm0 to 6 dBm0
47
MICIN to DOUT at 7 dBm0 to 12 dBm0
42
Transmit signal-to-distortion ratio with sine-wave input
MICIN to DOUT at 13 dBm0 to 18 dBm0
38
dB
Transmit signal-to-distortion ratio with sine-wave input
MICIN to DOUT at 19 dBm0 to 24 dBm0
30
dB
MICIN to DOUT at 25 dBm0 to 45 dBm0
15
NOTES: 5. Unless otherwise noted, the analog input is 0 dB, 1020-Hz sine wave, where 0 dB is defined as the zero-reference point of the channel
under test.
6. The input amplifier is set for inverting unity gain.
7. This reference-level signal, which is input to the transmit channel, is defined as a value 3 dB below the full-scale value of 2 V.
8. Transmit noise, linear mode: 200
Vrms is equivalent to 74 dB (referenced to device 0-dB level).
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