參數(shù)資料
型號: T7507
廠商: Lineage Power
元件分類: 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)
文件頁數(shù): 16/30頁
文件大?。?/td> 554K
代理商: T7507
16
Lucent Technologies Inc.
Data Sheet
August 1999
Termination Impedance, and Hybrid Balance
T7507 Quad PCM Codec with Filters,
Electrical Characteristics
(continued)
dc Characteristics
(continued)
Table 9. Power Dissipation
Power measurements are made with outputs unloaded.
* A nominal 6 mA decrease in current per channel put into standby.
Transmission Characteristics
Table 10. Analog Interface
Parameter
Powerdown Current
Powerup Current*
Standby Current
Symbol
I
DDO
I
DD1
I
DDS
Test Conditions
MCLK present; FSEP = 0.4 V
MCLK, FSEP present; all channels powered up
MCLK, FSEP present; all channels powered down
Min
Typ
0.4
33
7
Max
1
40
10
Unit
mA
mA
mA
Parameter
Symbol
R
VF
X
I
V
IX
RL
VF
R
O
CL
VF
R
O
RO
VF
R
O
Test Conditions
1 V < |VFxI| < 4 V
Relative to ground
Differential load
0 dBm0, 1020 Hz PCM code
applied to D
R
Channel under test in powerdown 3000
Alternating ±0 A-law PCM
code applied to D
R
FSEP = active, no load, channel
under test in powerdown
Alternating ±0 A-law PCM code
applied to D
R
FSEP = 0.4 V
Min
100
2.25
2
Typ
2.35
2
Max
300
2.5
100
20
Unit
k
V
k
pF
Input Resistance, VF
X
IN
Input Voltage, VF
X
IN
Load Resistance, VF
R
ON to VF
R
OP
Load Capacitance, VF
R
ON to VF
R
OP
Output Resistance, VF
R
O
2.35
10000
2.5
V
dc Output Voltage, VF
R
OP, VF
R
ON
V
OR
2.20
dc Output Voltage, VF
R
OP, VF
R
ON
Standby
Differential dc Output
VF
R
OP – VF
R
ON
Output Leakage Current, VF
R
OP,
VF
R
ON Powerdown
Output Voltage Swing, VF
R
OP – VF
R
ON
VO
RPD
2.15
2.35
2.65
V
V
OR
–60
60
mV
IO
VF
R
O
–30
30
μA
V
SWR
RL = 2 k
(differential)
2.6
Vp-p
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