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參數(shù)資料
| 型號： | U3762MB-MFNG3 |
| 英文描述： | Universal Telephone IC - All Functions Integrated |
| 中文描述： | 通用電話芯片-所有的功能集成 |
| 文件頁數(shù)： | 18/23頁 |
| 文件大小： | 248K |
| 代理商： | U3762MB-MFNG3 |
U3762MB
Rev. A1, 15-Sep-98
Preliminary Information
18 (23)
DC Characteristics Dialer
V
DD
= 2.7 V, f
OSC
= 3.58 MHz, all outputs unloaded, S9 closed; HKS = 0
Parameters
Test Conditions / Pins
HKS = 1, V
DD
= 1.0 V
Column/Row
R
L
= 5 k
V
PO
= 0.5 V
V
I
= 0 V
Symbol
I
MR
Min.
Typ.
Max.
0.1
3
–23
Unit
A
dB
dB
mA
A
Memory rentention current
Pre-emphasis
DTMF distortion
DP output sink current
Keyboard input drive
current
Keyboard input sink current
Key on resistance
all other keys
Key off resistance
Mask sink / drive current
Earth sink / drive current
1
2
d
–30
I
PL
I
KD
0.5
20
V
I
= 2.7 V
I
KS
R
KON
500
A
5
k
R
KOFF
I
M
H/L
I
e
H/L
100
k
mA
mA
0.5
0.5
AC Characteristics Dialer
Parameters
Keypad active in
debounce mode
Key release debounce
Pre-digit pause
Test Conditions / Pins
Symbol
t
KID
Min.
15
Typ.
20
Max.
25
Unit
ms
t
KRD
t
PDP
t
PDP
t
PDP
t
PDP
t
IP
t
IP
M/B
15
37
31
20
40
33.3
20
16.65
836
512
40:60
25
41
33.5
ms
ms
ms
ms
ms
ms
ms
%
MODE pin = R3 (10 pps)
MODE pin = C1, C2, C4 (10 pps)
MODE pin = R1 (20 pps)
MODE pin = R2
10 pps, t
IP
= t
IDP
+ t
PDP
20 pps
MODE pin = R1 (20 pps), R3
(10 pps)
MODE pin = C1, C2, R4 (10 pps)
R2 (20 pps)
Auto dialing, MODE = C4
MODE = C3
Auto dialing, MODE = C4
MODE = C3
C4
connected to R3
F
Inter-digit pause
(auto dialing)
Make/break ratio
810
860
40.8:60.2
35.6:64.4
33:67
39.2:60.8
31.2:68.8
%
DTMF output duration
t
TD
84
84
84
135
95
0.9
3.5
87
87
87
140
98
1
3.6
220
90
90
90
147
101
1.1
3.7
ms
ms
ms
ms
ms
s
s
ms
Inter-tone pause
t
ITP
Flash break time, F
Flash pause time
Pause time
On-hook debounce
time
t
FB
t
FP
t
P
t
ohd
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