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參數(shù)資料
| 型號(hào)： | T7502 |
| 元件分類： | Codec |
| 英文描述： | T7502 Dual PCM Codec with Filters |
| 中文描述： | T7502雙PCM編解碼器與濾波器 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 417K |
| 代理商： | T7502 |
Lucent Technologies Inc.
5
Data Sheet
February 1998
T7502 Dual PCM Codec with Filters
Electrical Characteristics
(continued)
dc Characteristics
(continued)
Table 3. Power Dissipation
Power measurements are made at MCLK = 4.096 MHz, outputs unloaded.
Transmission Characteristics
Table 4. Analog Interface
Parameter
Symbol
I
DDO
I
DDU
Test Conditions
MCLK present and FS
≤
0.4 V
MCLK, FS
pulse present
Min
—
—
Typ
0.1
18
Max
1
25
Unit
mA
mA
Powerdown Current
Powerup Current
Parameter
Symbol
R
VFXI
I
BVFXI
—
—
Test Conditions
VFxI = 2.4 V
VFxI = 2.4 V
—
—
Min
1.0
–2.4
Typ
—
±
0.01
—
—
Max
—
2.4
10
5
Unit
M
μ
A
pF
mV
Input Resistance, FS
X
I
Input Leakage Current, VF
X
I
Input Capacitance, VF
X
IN, VF
X
IP
Input Offset Voltage of Uncommitted
Op Amp, VF
X
IN – VF
X
IP
Input Common-mode Voltage Range,
VF
X
IN, VF
X
IP
Input Common-mode Rejection Ratio,
VF
X
IN, VF
X
IP
Gain Bandwidth Product (10 kHz) of Un-
committed Op Amp
Equivalent Input Noise Between VF
X
IN
and VF
X
IP at GS
X
Output Voltage Range, GS
X
dc Open-loop Voltage Gain, GS
X
Differential Output dc Offset Voltage
Load Capacitance, GS
X
Load Resistance, GS
X
VCM Output Voltage Referenced to GND
VCM Output Load Capacitance
Load Resistance, V
CM
Load Resistance, VF
R
O
Load Capacitance, VF
R
O
Output Resistance, VF
R
O
–5
—
—
1.2
—
V
DD
– 1.75
V
—
—
—
60
—
dB
—
—
—
3000
—
kHz
—
—
—
–30
—
dBrnC
—
A
VOL
—
CL
X1
RL
X1
—
—
RL
VCM
RL
VFRO
CL
VFRO
RO
VFRO
—
—
—
—
—
—
—
—
—
—
0.5
90
–80
—
10
2.25
0
10
300
—
—
—
—
±
10
—
—
2.35
—
—
—
—
0.3
V
DD
– 0.5
—
80
50
—
2.5
50
—
—
100
3
V
dB
mV
pF
k
V
pF
k
pF
0 dBm0, 1020 Hz PCM
code applied to D
R
Alternating
±
zero A-law
PCM code applied to D
R
—
Output Voltage, VF
R
O
VO
R
2.25
2.35
2.5
V
Output Leakage Current, VF
R
O, Power-
down
Output Voltage Swing, VF
R
O
IO
VFRO
–30
±
0.02
30
μ
A
V
SWR
RL = 300
3.2
—
—
Vp-p
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