參數(shù)資料
型號： W925E625
英文描述： Telephone Controller
中文描述： 電話控制器
文件頁數(shù)： 67/71頁
文件大?。?/td> 1055K
代理商： W925E625
W925E/C625
8-bit CID Microcontroller
Electrical Characteristics - Gain Control OP-Amplifier
Revision : A6
-67-
Release Date : 2002/7/2
(Electrical characteristics supersede the recommended operating conditions unless otherwise stated.)
Parameter
Symbol Min
Input Leakage Current
I
IN
Input Resistance
R
IN
10
Input Offset Voltage
V
OS
Power Supply Rejection Ratio
PSRR
40
Maximum Capacitive Load (GCFBx) C
L
Maximum Resistive Load (GCFBx) R
L
50
Note: "
" Typical figure are at V
DD
= 5V and temperature = 25
￠ J
are design aids only, not guaranteed and not subject to
production testing.
7.4
AC Electrical Characteristics
Typ
Max Units Test Conditions
1
μ
A
M
25
mV
dB
100
pF
k
V
SS
≤
V
IN
≤
V
DD
1 kHz 0.1 Vpp ripple on V
DD
(AC timing characteristics supersede the recommended operating conditions unless otherwise stated.)
Dual Tone Alert Signal Detection Interface
Parameter
Symbol Min
Low Tone Frequency
f
L
High Tone Frequency
f
H
Frequency Deviation accept
Frequency Deviation reject
Maximum Input Signal Level
Input Sensitivity per tone
Reject Signal Level per tone
Positive and negative twistb accept
Noise Tolerance
SNR
TONE
20
Notes:
a. dBm = decibels with a reference power of 1 mW into 600 ohms, 0 dBm = 0.7746 Vrms.
b. Twist = 20 log (fH amplitude / fL amplitude).
1. Both tones have the same amplitude. Both tones are at the nominal frequencies.
2. Band limited random noise
300 - 3400 Hz. Present only when tone is present.
3. Range within which tones are accepted.
4. Ranges outside of which tones are rejected.
5. These characteristics are at V
DD
= 5V and temperature = 25
￠ J
.
Dual Tone Alert Signal Detection
Parameter
Condition Symbol
Alert Signal present detect time
Alert Signal absent detect time
"
" Typical figure are at V
DD
= 5V and temperature = 25
￠ J
are design aids only, not guaranteed and not subject to
production testing.
Typ
2130
2750
Max
0.22
-48
Units
Hz
Hz
%
%
dBma
dBm
dBm
dB
dB
Notes
3
4
1.1
3.5
-40
7
-38
5
5
1, 2
Min
0.5
0.1
Typ
Max
10
8
Units Notes
MS
MS
t
DP
t
DA
ALGR
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