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參數(shù)資料
| 型號： | T7504 |
| 元件分類： | Codec |
| 英文描述： | T7504 and T75504 Quad PCM Codecs with Filters |
| 中文描述： | T7504和T75504四的PCM編解碼器與濾波器 |
| 文件頁數(shù)： | 8/18頁 |
| 文件大?。?/td> | 221K |
| 代理商： | T7504 |
8
Lucent Technologies Inc.
Data Sheet
March 1999
T7504 and T5504 Quad PCM Codecs with Filters
Transmission Characteristics
(continued)
Table 8. Envelope Delay Distortion
* Varies as a function of time slots chosen.
Overload Compression
Figure 5 shows the region of operation for encoder signal levels above the reference input power (0 dBm0).
5-3586
Figure 5. Overload Compression
Parameter
Symbol
D
XA
D
XR
Test Conditions
f = 1600 Hz
f = 500 Hz—600 Hz
f = 600 Hz—800 Hz
f = 800 Hz—1000 Hz
f = 1000 Hz—1600 Hz
f = 1600 Hz—2600 Hz
f = 2600 Hz—2800 Hz
f = 2800 Hz—3000 Hz
f = 1600 Hz
f = 500 Hz—1000 Hz
f = 1000 Hz—1600 Hz
f = 1600 Hz—2600 Hz
f = 2600 Hz—2800 Hz
f = 2800 Hz—3000 Hz
Any time slot/channel to
any time slot/channel
f = 1600 Hz
Min
—
—
—
—
—
—
—
—
—
–40
–30
—
—
—
—
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
Unit
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
T
X
Delay, Absolute*
T
X
Delay, Relative to 1600 Hz
175 to 425
220
145
75
40
75
105
155
150 to 405
—
—
90
125
175
325 to 650
R
X
Delay, Absolute*
R
X
Delay, Relative to 1600 Hz
D
RA
D
RR
Round Trip Delay, Absolute*
D
RTA
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
ACCEPTABLE
REGION
FUNDAMENTAL INPUT POWER (dBm)
F
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| T7507 | 制造商:AGERE 制造商全稱:AGERE 功能描述:T7507 Quad PCM Codec with Filters, Termination Impedance, and Hybrid Balance |
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| T7570 | 制造商:AGERE 制造商全稱:AGERE 功能描述:T7570 Programmable PCM Codec with Hybrid-Balance Filter |
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