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型号： MC14LC5540DW
厂商： Freescale Semiconductor
文件页数： 5/28页
文件大小： 0K
描述： IC CODEC ADPCM 28-SOIC W
标准包装： 26
类型： ADPCM 编解码器/滤波器
数据接口： PCM 音频接口
分辨率（位）： 13 b
ADC / DAC 数量： 1 / 1
三角积分调变： 无
电压 - 电源，数字： 4.5V ~ 5.5V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 28-SOIC（0.295"，7.50mm 宽）
供应商设备封装： 28-SOIC W
包装： 管件
MC145484
MOTOROLA
13
ANALOG TRANSMISSION PERFORMANCE
(VDD = + 5 V ± 10%, VSS = 0 V, All Analog Signals Referenced to VAG, 0 dBm0 = 0.775 Vrms = + 0 dBm @ 600 , FST = FSR = 8 kHz,
BCLKT = MCLK = 2.048 MHz Synchronous Operation, TA = – 40 to + 85°C, Unless Otherwise Noted)
A/D
D/A
Characteristics
Min
Typ
Max
Min
Typ
Max
Units
Peak Single Frequency Tone Amplitude without Clipping
Tmax
—
1.575
—
1.575
—
Vpk
Absolute Gain (0 dBm0 @ 1.02 kHz, TA = 25°C, VDD = 5.0 V)
– 0.25
—
+ 0.25
– 0.25
—
+ 0.25
dB
Absolute Gain Variation with Temperature
0 to + 70
°C
(Referenced to 25
°C)
– 40 to + 85
°C
—
± 0.03
± 0.05
—
± 0.03
± 0.05
dB
Absolute Gain Variation with Power Supply (TA = 25°C)
—
± 0.03
—
± 0.03
dB
Gain vs Level Tone (Mu–Law, Relative to – 10 dBm0, 1.02 kHz)
+ 3 to – 40 dBm0
– 40 to – 50 dBm0
– 50 to – 55 dBm0
– 0.20
– 0.4
– 0.8
—
+ 0.20
+ 0.40
+ 0.80
– 0.20
– 0.40
– 0.80
—
+ 0.20
+ 0.40
+ 0.80
dB
Gain vs Level Pseudo Noise, CCITT G.712
– 10 to – 40 dBm0
(A–Law, Relative to – 10 dBm0)
– 40 to – 50 dBm0
– 50 to – 55 dBm0
– 0.25
– 0.30
– 0.45
—
+ 0.25
+ 0.30
+ 0.45
– 0.25
– 0.30
– 0.45
—
+ 0.25
+ 0.30
+ 0.45
dB
Total Distortion, 1.02 kHz Tone
+ 3 dBm0
(Mu–Law, C–Message Weighting)
0 to – 30 dBm0
– 40 dBm0
– 45 dBm0
34
36
30
25
—
34
36
30
25
—
dBC
Total Distortion, Pseudo Noise, CCITT G.714 (A–Law)
– 3 dBm0
– 6 to – 27 dBm0
– 34 dBm0
– 40 dBm0
– 50 dBm0
– 55 dBm0
30
36
34
29
19
14
—
30
36
35
30
20
15
—
dB
Idle Channel Noise (For End–to–End and A/D, See Note 1)
(Mu–Law, C–Message Weighted)
(A–Law, Psophometric Weighted)
—
17
– 69
—
11
– 79
dBr nc0
dBm0p
Frequency Response (Relative to 1.02 kHz @ 0 dBm0)
15 Hz
50 Hz
60 Hz
165 Hz
200 Hz
300 to 3000 Hz
3000 to 3200 Hz
3300 Hz
3400 Hz
3600 Hz
4000 Hz
4600 Hz to 100 kHz
—
– 1.0
– 0.20
– 0.35
– 0.8
—
– 3.0
—
– 3.0
—
– 40
– 30
– 26
—
– 0.4
+ 0.15
+ 0.20
+ 0.15
0
—
– 14
– 32
– 0.5
– 0.15
– 0.20
– 0.35
– 0.85
—
– 3.0
—
0
+ 0.15
+ 0.20
+ 0.15
0
—
– 14
30
dB
In–Band Spurious (1.02 kHz @ 0 dBm0, Transmit and Receive)
300 to 3400 Hz
—
– 48
—
– 48
dB
Out–of–Band Spurious at RO+ (300 to 3400 Hz @ 0 dBm0 in)
4600 to 7600 Hz
7600 to 8400 Hz
8400 to 100,000 Hz
—
– 30
– 40
– 30
dB
Idle Channel Noise Selective (8 kHz, Input = VAG, 30 Hz Bandwidth)
—
– 70
dBm0
Absolute Delay (1600 Hz)
—
315
—
205
s
Group Delay Referenced to 1600 Hz
500 to 600 Hz
600 to 800 Hz
800 to 1000 Hz
1000 to 1600 Hz
1600 to 2600 Hz
2600 to 2800 Hz
2800 to 3000 Hz
—
210
130
70
35
70
95
145
– 40
– 30
—
85
110
175
s
Crosstalk of 1020 Hz @ 0 dBm0 from A/D or D/A (Note 2)
—
–75
—
–75
dB
Intermodulation Distortion of Two Frequencies of Amplitudes
(– 4 to – 21 dBm0 from the Range 300 to 3400 Hz)
—
– 41
—
– 41
dB
NOTES:
1. Extrapolated from a 1020 Hz @ – 50 dBm0 distortion measurement to correct for encoder enhancement.
2. Selectively measured while stimulated with 2667 Hz @ – 50 dBm0.
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Freescale Semiconductor, Inc.
For More Information On This Product,
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