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參數(shù)資料
| 型號： | U2894B-AFSG3 |
| 英文描述： | Modulation PLL for GSM, DCS and PCS Systems |
| 中文描述： | 調(diào)制鎖相環(huán)用于GSM，DCS和PCS系統(tǒng) |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 802K |
| 代理商： | U2894B-AFSG3 |
U2894B
Rev. A4, 30-Sep-98
3 (16)
Absolute Maximum Ratings
Parameters
Symbol
Value
Unit
Supply voltage VS1, VS2, VS3
VVS#
v VVSP
V
Supply voltage charge pump VSP
VVSP
5.5
V
Voltage at any input
VVi#
–0.5
v VVS +0.5 v 5.5
V
Current at any input / output pin
except CPC
| II# | | IO# |
2
mA
CPC output currents
| ICPC |
5
mA
Ambient temperature
Tamb
–20 to +85
°C
Storage temperature
Tstg
–40 to +125
°C
Operating Range
Parameters
Symbol
Value
Unit
Supply voltage
VVS#, VVSP
2.7 to 5.5
V
Ambient temperature
Tamb
–20 to +85
°C
Thermal Resistance
Parameters
Symbol
Value
Unit
Junction ambient SSO28
RthJA
130
K/W
Electrical Characteristics
Tamb = 25°C, VS = 2.7 to 5.5 V
Parameters
Test Conditions / Pin
Symbol
Min.
Typ.
Max.
Unit
DC supply
Supply voltages VS#
VVS1 = VVS2 = VVS3
VVS#
2.7
5.5
V
Supply voltage VSP
VVSP
VVS#
– 0.3
5.5
V
Supply current IVS1
Active (VPU = VS)
IVS1A
18
23
mA
pp y
Standby (VPU = 0)
IVS1Y
20
mA
Supply current IVS2
Active (VPU = VS)
IVS2A
17
22
mA
pp y
Standby (VPU = 0)
IVS2Y
20
mA
Supply current IVS3
Active (VPUMIX = VS)
IVS3A
13
17
mA
pp y
Standby (VPUMIX = 0)
IVS3Y
30
mA
Supply current IVSP 1)
Active
(VPU = VS, CPC open)
IVSPA
1.4
1.8
mA
Standby (VPU = 0)
IVSPY
20
mA
N & R divider inputs ND, NND & RD, NRD
N:1 divider frequency
50-
W source
fND
100
600
MHz
R:1 divider frequency
50-
W source
fRD
100
600
MHz
Input impedance
Active & standby
ZRD, ZND
1 k
2 pF
–
Input sensitivity
50-
W source
VRD, VND
20
200
mVrms
1)
Mean value measured with FND = 151 MHz, FRD = 150 MHz, current vs. time, see page 6, figure 3.
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