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參數(shù)資料
| 型號： | U3900BM-AFNG3 |
| 英文描述： | Programmable Telephone Audio Processor |
| 中文描述： | 程控電話音頻處理器 |
| 文件頁數(shù)： | 25/34頁 |
| 文件大?。?/td> | 762K |
| 代理商： | U3900BM-AFNG3 |
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U3900BM
Target Specification
Rev. A2, 25-Aug-98
31 (34)
Electrical Characteristics (continued)
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Fig.
Supply voltages, VMIC = 25 mV, Tamb = – 10 to + 60°C
VMP
IL = 14 mA, RDC = 680 k
W
IMP = 3 mA
VMP
3.1
3.3
3.5
V
VMPS
IL = 100 mA, RDC = inf.,
IMP = 0 mA
VMPS
5.7
V
VMIC
IL 14 mA, RDC = 1.3 M
W
IM = 700 A
VMIC
1.5
4
V
VB
IB = +20 mA, IL = 0 mA
VL = 100 mA
VB
5.5
6.3
V
Ringing power converter, IMP = 1 mA, IM = 0 RIMPA = 500 kW
Maximum output
power
VRING = 20.6 V,
DTMFM[0:2] = 3
I2O2 = ENSA = ENSAO =
SE = 1
PSA
20
mW
Threshold
VRING: high to low
6.5
7
V
low to high
RINGTH [0:3] = 0
6.3
7
7.7
V
low to high
RINGTH [0:3] = 15
20
22
24
V
Adjustment steps
threshold
DRINGTH = 1
0.8
1
1.2
V
Input impedance
VRING = 30 V
4
5
6
k
Z-diode voltage
IRING = 25 mA
VRINGmax
30.8
V
Serial bus BCL, BDA, AS, VMP = 3.3 V, RBDA = RBCL = RINT = 12 k
W
Input voltage
HIGH
LOW
BDA, BCL,
INT
ViBUS
3.0
0
VDD
1.5
V
Output voltage
Acknowledge LOW
BDA
IBDA = 3 mA
VO
0.4
V
Clock frequency
BCL
fBCL
100
kHz
Rise time BDA, BCL
tr
1
ms
Fall time BDA, BCL
tf
300
ns
Period of BCL
HIGH
LOW
HIGH
LOW
tH
tL
4.0
4.7
ms
Setup time
Start condition
Data
Stop condition
Time space 1)
tsSTA
tsDAT
tsSTOP
twSTA
4.7
250
4.7
ms
ns
ms
Hold time
Start condition
DATA
thSTA
thDAT
4.0
0
ms
1) This is a space of time where the bus must be free from data transmission and before a new transmission can be started
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