參數(shù)資料
型號(hào): T7507
廠商: Lineage Power
元件分類(lèi): Codec
英文描述: Quad PCM Codec with Filters,Termination Impedance, and Hybrid Balance(帶濾波器、終端阻抗和混合平衡的四PCM編解碼器)
中文描述: 四PCM編解碼器與過(guò)濾器,終端阻抗,以及混合平衡(帶濾波器,終端阻抗和混合平衡的四的PCM編解碼器)
文件頁(yè)數(shù): 18/30頁(yè)
文件大小: 554K
代理商: T7507
18
Lucent Technologies Inc.
Data Sheet
August 1999
Termination Impedance, and Hybrid Balance
T7507 Quad PCM Codec with Filters,
Transmission Characteristics
(continued)
ac Transmission Characteristics
(continued)
Table 14. Envelope Delay Distortion
* Varies as a function of time slots chosen.
Overload Compression
Figure 4 shows the region of operation for encoder signal levels above the reference input power (0 dBm0).
5-3586(F)
Figure 4. 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
135
–44
–30
Typ
Max
Unit
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
μs
T
X
Delay, Absolute*
T
X
Delay, Relative to 1600 Hz
165 to 425
220
145
75
40
75
105
155
135 to 395
90
125
175
305 to 625
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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