AS3802 [AMSCO]
CDMA/FM RECEIVE AGC AMPLIFIER AS3802; CDMA / FM接收AGC放大器AS3802
| 型号： | AS3802 |
| 厂家： | 
AMS(艾迈斯) |
| 描述： | CDMA/FM RECEIVE AGC AMPLIFIER AS3802 |
| 文件： | 总9页 (文件大小：93K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary Data Sheet
AS3802
CDMA/FM RECEIVE AGC
AMPLIFIER AS3802
Austria Mikro Systeme International AG
Key Features
General Description
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Supports dual mode operation.
-50 to +50db gain control guaranteed.
Single 3.6V supply.
The AS3802 is a gain controlled amplifier designed
for the receive section of dual mode CDMA/FDM,
TDMA/FDM or FM/FDM cellular phones.
Key specifications like gain range noise figure, IP3,
temperature range and other specifications are
designed to be in line with the IS-95 Standard for
CDMA cellular communications.
Temperature and supply stabilized.
Power down feature.
80MHz to 250MHz operation.
Silicon BiCMOS process.
The circuit is designed for narrow band IF
applications but can also be used in wideband
applications.
Miniature surface mount 16 pin, 150 mil SSOP
package.
Applications
Compatibility
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Digital cellular systems with receiving methods:
CDMA/FDM,
TDMA/TDD.
TDMA/FDM,
FM/FDM
and
The AS3802 is designed to be functionally or/and
pin compatible to the following products:
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Examples: IS-95 CDMA, IS-54 DAMPS, AMPS,
PWT.
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RF9907
Q5500
(RF Micro Devices), pin compat.
(Qualcomm), pin compat.
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Cordless phones analog/digital.
General purpose linear IF amp’s.
WLL / WLAN
CXA3001N (Sony)
CDMA+
VCTRL
VCC
CDMA-
GND
FM+
VCC
VCC
FM-
GND
GND
OUT+
OUT-
GND
SEL
PWD
SSOP-16
Rev. C
1/9
Nov. 98
Preliminary Data Sheet
AS3802
This document contains information on products under development. Austria Mikro Systeme Intl. AG reserves
the right to change or discontinue this product without notice.
Absolut Maximum Ratings (non operating)
Symbol
Parameter
min
max
Unit
Note
VDD
GND
Vin
Positive Supply Voltage
Analog Ground
-0.5
0
7
V
V
0
VDD+0.5
40
Voltage at every Input Pin)
Gnd-0.5
-40
V
Iin
Input Current
mA
(into any pin except supply pins and
except low leakage pin)
Iin_15
H
Input Current into Low Leakage Pin
Humidity Noncondensing
Electrostatic Discharge
Storage Temperature
-25
-55
25
mA
1)
2)
ESD
Tstg
Tlead
1000
125
V
deg C
deg C
Lead Temperature
260
3)
Notes:
1) Defined DIN 40040 cond. F.
2) HBM: R=1.5kOhm, C=100pF.
Open collector outputs have less ESD protection because the protection diode to the positive supply
cannot be implemented (The output swing is higher than Vpos.+0.7V).
3) 260 deg C for 10 sec (Reflow and wave soldering), 360 deg C for 3 sec (Manual soldering).
The above figures conform to CMOS standard for low leakage application.
Recommended Operating Conditions
Symbol
Parameter
min
typ
max
Unit
Note
VDD
GND
Idd
Positive Supply Voltage
Analog Ground
3.6
0
V
V
1)
0
0
Supply Current
10
14
mA
deg C
2)
Tamb
Ambient Temperature Range,
Operating Range
-30
+80
Notes:
1) 3.6V ± 5%.
2) Measured at pin VDD, see test schematic, no signal.
Rev. A
2/9
Jul 98
Preliminary Data Sheet
AS3802
RX AGC Electrical Characteristics
Parameter
min
typ
max
Unit
Note
Frequency Range
Maximum Gain
Minimum Gain
Noise Figure
Input IP3
80-250
MHz
dB
f-3dB=250MHz
VG=3V
50
-50
dB
VG=0.2V
6.5
dB
max Gain
-7
-14
dBm
dBm
min Gain FM
min Gain CDMA 1)
Output CP1
-25
dBm
dB
Gain Var. in +/-630 kHz
+/-0.05
bandwidth centered at 85MHz
Gain Slope Linearity
(over any 6dB segment)
+/- 3
dB
V
-32 to +72 deg.C
Gain Control Voltage Range
0.2-3
0.2V min Gain
3.0V max Gain
ref. To GND
Gain Control Input Impedance
Current Consumption
Input Resistance
16
10
kW
14
mA
1k diff.
850 sing.
CDMA
FM
W
W
Output Impedance
500
W
500 W differential
outside
(Reff. =250W)
CDMA to FM Isolation
Power Down Mode
30
dB
2)
Notes:
Measurements refered to 85MHz.
1) Two tone measurement is used.
f1=86MHz; f2=87MHz; SEL=High for CDMA mode, SEL=Low for FM mode.
2) Highº Active, Lowº Power save, Input impedance ³ 16kW.
Rev. A
3/9
Jul 98
Preliminary Data Sheet
AS3802
Pin Description
Pin#
Symbol
Function
1
2
3
4
5
6
7
CDMA+
CDMA-
GND
FM+
CDMA Positive Differential Input
CDMA Negative Differential Input
Analog Ground
Single Ended Analog Input
Analog Ground Connection (RX FM Input Reference)
Analog Ground
FM-
GND
SEL
Select, CMOS Input
VSELECT>=3.4V, CDMA Mode Select
VSELECT<=0.5V, FM Mode Select
8
PWD
Power down, CMOS Input
VPWD-RX>=3.4V, RX-AGC Active
VPWD-RX<=0.5V, RX-AGC Off
9
OUT-
OUT+
GND
Analog Differential Output
Analog Differential Output
Analog Ground
10
11
12
13
14
15
16
GND
Analog Ground
VCC
VCC Power Supply
VCC Power Supply
VCC Power Supply
Analog Control Input
VCC
VCC
VCTRL
VCTRL=0.2V, Low Gain Rail; VCTRL=3V, High Gain Rail
Rev. A
4/9
Jul 98
Preliminary Data Sheet
AS3802
Definition of Load Impedance, ZL, and
AS3802 Output Impedance ZO
Definition of CDMA Source Impedance,
ZS, and AS3802 Input Impedance ZIN
Zs=500
W
VCC
Vp
Measurement
Reference Plane
RX-CDMA
CDMA+
CDMA-
Z1
Z1
RB
IF Signal
Source
R=1k
W
OUT+
OUT-
Output
Port
ZLeff
Z0
ZL
Vn
Zin=1k (typ)
W
RX-CDMA Output Port Impedance
Load Impedance
Bias Resistor
ZO>5kW
The value of the 1kW resistor is calculated in the
matching network between the filter and the input of the
RX-APM.
ZL=500W
RB=500W *
L=Choke,
w.L>>RB*
ZLeff=250W
Bias Inductors
Effective Load
Definition of FM Source Impedance, ZS,
and AS3802 Input Impedance ZIN
*Note:
Z1 can be a resistor or a choke.
If it is a resistor Z1=R1=250W then RB is not
used.
Zs=850
W
Vp
FM+
If it is a choke, w.L>>RB and RB=500W.
IF Signal
Source
FM-
(AC GND)
Vn
Zin=850 (typ)
W
AC GND is defined as FM- in the package pin definition.
Rev. A
5/9
Jul 98
Preliminary Data Sheet
AS3802
Transfer Characteristic
FM RX AGC
80,00
60,00
40,00
20,00
0,00
Gain, 25 degC
Gain, 75 degC
Gain, -35 degC
-
0,50
1,00
1,50
2,00
2,50
3,00
3,50
-20,00
-40,00
-60,00
-80,00
Vcntrl [V]
CDMA RX AGC
80,00
60,00
40,00
20,00
0,00
Gain, 25 degC
Gain, 75 degC
Gain, -35 degC
-
0,50
1,00
1,50
2,00
2,50
3,00
3,50
-20,00
-40,00
-60,00
-80,00
Vcntrl [V]
Rev. A
6/9
Jul 98
Preliminary Data Sheet
AS3802
Intermodulation Performance
RX CDMA IIP3
-10
-40
-60
-50
-40
-30
-20
-10
0
10
20
30
40
-15
-20
-25
-30
-35
-40
-45
-50
-55
-50
-60
-70
IIP3
Pim
-80
-90
-100
-110
-120
Pout=const. = -41 dBm
Pin=const. = -26 dBm
Gain [dB]
RX FM IIP3
0
-5
-40
-60
-50
-40
-30
-20
-10
0
10
20
30
40
-50
-10
-15
-20
-25
-30
-35
-40
-45
-50
-60
-70
-80
IIP3
Pim
-90
-100
-110
-120
-130
-140
Pout=const. = -41 dBm
Pin=const. = -26 dBm
Gain [dB]
Rev. A
7/9
Jul 98
Preliminary Data Sheet
AS3802
Compression Behaviour
Output CP1
44
43
42
41
40
39
38
37
36
35
0
-1 dB
-5
-10
-15
-20
-25
-30
-35
-40
Pout, RX CDMA
Gain, RX CDMA
Gain, RX FM
Pout, RX FM
-90
-80
-70
-60
Pin [dBm]
-50
-40
-30
Rev. A
8/9
Jul 98
Preliminary Data Sheet
AS3802
Typical Application @ 85MHz
The information furnished herein by Austria Mikro Systeme International is substantially correct and accurate. However, Austria Mikro Systeme
International shall not be liable to licensee or any third party for any damages, including but not limited to personal injury, property damage, loss
of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising
out of the furnishing, performance or use of the technical data. No obligation or liability to licensee or any third party shall arise or flow out of
Austria Mikro Systeme International’s rendering of technical or other services.
Austria Mikro Systeme International makes no warranty, express, statutory, implied, or by description regarding the information set forth herein
or regarding the freedom of the described devices from patent infringement. Austria Mikro Systeme International reserves the right to change
specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with
Austria Mikro Systeme International for current information. This product is intended for use in normal commercial applications. Applications
requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-
support or life-sustaining equipment are specifically not recommended without additional processing by Austria Mikro Systeme International for
each application.
Copyright @ 1998, Austria Mikro Systeme International AG, Schloß Premstätten, 8141 Unterpremstätten, Austria. All rights reserved. The
material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
Rev. A
9/9
Jul 98
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