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参数资料
| 型号： | TCM320AC46N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP20 |
| 文件页数： | 4/19页 |
| 文件大小： | 246K |
| 代理商： | TCM320AC46N |
TCM320AC46
GENERAL-PURPOSE AUDIO INTERFACE FOR DSP
SLWS001 – D4091, JUNE 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
12
receive gain and dynamic range, linear mode,
-law or A-law, VCC = 5 V, TA = 25°C (unless otherwise noted)
(see Notes 9 and 10)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Receive reference signal level (0 dB) (see Note 11)
Linear mode selected
0.751
Vrms
Receive reference-signal level (0 dB) (see Note 11)
Companded mode selected,
-law
0.736
Vrms
Overload signal level
Linear mode selected
3
VPP
Overload-signal level
Companded mode selected,
-law
3
VPP
Absolute gain error
0-dB input signal
±2
dB
DIN to EARA and EARB at 3 dBm0 to – 40 dBm0
±0.8
Gain error with output level relative to gain at –10 dBm0
DIN to EARA and EARB at – 41 dBm0 to – 50 dBm0
±2
dB
DIN to EARA and EARB at – 51 dBm0 to – 55 dBm0
±2.5
Gain variation
VCC ± 10%,
TA = 0°C to 70°C
±0.5
dB
receive filter transfer over recommended ranges of supply voltage and operating free-air temperature (see
Note 8)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Input signal = < 200 Hz
0.35
Input signal = 200 Hz
– 0.8
0.35
Input signal = 300 Hz to 3 kHz
±0.35
Gain relative to input signal gain at 1.02 kHz
Input signal at DIN is 0 dBm0
Input signal = 3.3 kHz
– 0.55
0.2
dB
Input signal = 3.4 kHz
–2
0
Input signal = 4 kHz
–11
Input signal > 4.6 kHz
–28
receive 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
Receive noise, C-message weighted
DIN = 11111111
17
dBrnC0
DIN to EARA and EARB at 0 dBm0 to – 30 dBm0
32
Receive signal-to-distortion ratio with sine-wave input
DIN to EARA and EARB at – 31 dBm0 to – 40 dBm0
25
dB
DIN to EARA and EARB at – 41 dBm0 to – 45 dBm0
18
receive idle channel noise and distortion, linear mode over recommended ranges of supply voltage and
operating free-air temperature (see Note 8)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
Receive noise
DIN = 00000000(linear)
–60
dB
DIN to EARA and EARB at 0 dBm0 to – 6 dBm0
48
DIN to EARA and EARB at – 6 dBm0 to – 12 dBm0
42
Receive signal-to-distortion ratio with sine-wave input
DIN to EARA and EARB at – 13 dBm0 to – 18 dBm0
38
dB
DIN to EARA and EARB at – 19 dBm0 to – 24 dBm0
30
DIN to EARA and EARB at – 25 dBm0 to – 45 dBm0
14
NOTES: 8. Transmit noise, linear mode: 200
Vrms is equivalent to –74 dB (referenced to device 0-dB level).
9. Receive output is measured differentially in the maximum gain configuration. To set the output amplifier for maximum gain, EARGS
is connected to EARB and the output is taken between EARA and EARB. All output levels are (sin x)/x corrected.
10. Unless otherwise noted, the digital input is a word stream generated by passing a 0-dB sine wave at 1020 Hz through an ideal encoder
where 0 dB is defined as the zero reference.
11. This reference-signal level is measured at the speaker output of the receive channel with the gain of the output speaker amplifier set
to unity.
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