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參數資料
| 型號： | MC145506 |
| 廠商： | Motorola, Inc. |
| 元件分類： | Codec |
| 英文描述： | PCM CODEC FILTER MONO CIRCUIT |
| 中文描述： | 單聲道的PCM編解碼器濾波器電路 |
| 文件頁數： | 4/24頁 |
| 文件大小： | 405K |
| 代理商： | MC145506 |
MC145506
MC145507
MC145508
4
MOTOROLA
ANALOG TRANSMISSION PERFORMANCE
(VDD = 5 V
±
5%, VSS = –5 V
±
5%, VLS = VAG = 0 V, Vref = RSI = VSS (Internal 3.15 V Reference),
0 dBm0 = 1.546 Vrms = 6 dBm @ 600
, TA = –40
°
to 85
°
C, TDC = RDC = CCI, TDE = RCE = MSI, Unless Otherwise Noted)
End–to–End
A/D
D/A
Characteristic
Min
Max
Min
Max
Min
Max
Unit
Absolute Gain (0 dBm0 @ 1.02 kHz, TA = 25
°
C, VDD = 5 V, VSS = –5 V)
Absolute Gain Variation with Temperature 0
°
to 70
°
C
—
—
–0.30
0.30
–0.30
0.30
dB
—
—
—
±
0.03
—
±
0.03
dB
Absolute Gain Variation with Temperature –40
°
to 85
°
C
—
—
—
±
0.1
—
±
0.1
dB
Absolute Gain Variation with Power Supply (VDD = 5 V, VSS = –5 V, 5%)
Gain vs Level Tone (Relative to –10 dBm0, 1.02 kHz)
—
—
—
±
0.02
—
±
0.02
dB
3 to –40 dBm0
–40 to –50 dBm0
–50 to –55 dBm0
–0.4
–0.8
–1.6
0.4
0.8
1.6
–0.2
–0.4
–0.8
0.2
0.4
0.8
–0.2
–0.4
–0.8
0.2
0.4
0.8
dB
Gain vs Level Pseudo Noise (A–Law Relative to –10 dBm0)
CCITT G.714
–10 to –40 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 (C–Message)
0 to –30 dBm0
–40 dBm0
–45 dBm0
35
29
24
—
—
—
36
29
24
—
—
—
36
30
25
—
—
—
dBC
Total Distortion With Pseudo Noise (A–Law)
CCITT G.714
–3 dBm0
–6 to –27 dBm0
–34 dBm0
–40 dBm0
–55 dBm0
27.5
35
33.1
28.2
13.2
—
—
—
—
—
28
35.5
33.5
28.5
13.5
—
—
—
—
—
28.5
36
34.2
30.0
15.0
—
—
—
—
—
dB
Idle Channel Noise (For End–End and A/D, See Note 1)
(Mu–Law, C–Message Weighted)
(A–Law, Psophometric Weighted)
—
—
15
–69
—
—
15
–69
—
—
9
–78
dBrnC0
dBm0p
Frequency Response (Relative to 1.02 kHz @ 0 dBm0)
15 to 60 Hz
300 to 3000 Hz
3400 Hz
4000 Hz
≥
4600 Hz
—
–0.3
–1.6
—
—
–23
0.3
0
–28
–60
—
–0.15
–0.8
—
—
–23
0.15
0
–14
–32
—
–0.15
–0.8
—
—
0.15
0.15
0
–14
–30
dB
Inband Spurious (1.02 kHz @ 0 dBm0, Transmit and RxO)
300 to 3000 Hz
—
—
—
–43
—
–43
dBm0
Out–of–Band Spurious at RxO (300 – 3400 Hz @ 0 dBm0 In)
4600 to 7600 Hz
7600 to 8400 Hz
8400 to 100,000 Hz
—
—
—
–30
–40
–30
—
—
—
—
—
—
—
—
—
–30
–40
–30
dB
Idle Channel Noise Selective @ 8 kHz, Input = VAG, 30 Hz Bandwidth
Absolute Delay @ 1020 Hz (TDC = 2.048 MHz, TDE = 8 kHz)
—
–70
—
—
—
–70
dBm0
μ
s
Group Delay Referenced to 1600 Hz (TDC = 2048 kHz,
TDE = 8 kHz)
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
μ
s
Crosstalk of 1020 Hz @ 0 dBm0 From A/D or D/A (Note 2)
—
—
—
–75
—
–80
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 the A/D is stimulated with 2667 Hz @ –50 dBm0.
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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