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PDF HFA3665IA Data sheet ( Hoja de datos )
| Número de pieza | HFA3665IA | |
| Descripción | CDMA/AMPS Downconverter with AGC Capability | |
| Fabricantes | Intersil Corporation | |
| Logotipo |  |
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TM
PRELIMINARY
May 1999
NO
Call
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HFA3665
CDMA/AMPS Downconverter with AGC Capability
Features
Description
• RF Frequency Range . . . . . . . . . . . . 869MHz to 895MHz
• IF Operation . . . . . . . . . . . . . . . . . . . . 10MHz to 100MHz
• LNA Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16dB
• LNA NF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3dB
• Mixer Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16dB
• Mixer NF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11dB
• Single Supply Battery Operation . . . . . . . . 2.7V to 3.3V
• Power Enable/Disable Control
• PIN Diode Attenuator DC Control
Applications
• IS95A CDMA/AMPS Dual Mode Handsets
• Wideband CDMA Handsets
• CDMA/TDMA Packet Protocol Radios
• Full Duplex Transceivers
• Portable Battery Powered Equipment
The HFA3665 is a monolithic bipo-
lar downconverter for CDMA/AMPS
cellular applications. Manufactured
in the Intersil UHF1X process, the
device consists of a low noise cascode amplifier, a double
balanced downconversion mixer and a pair of linearized and
temperature compensated PIN diode biasing current
sources for external RF AGC applications. In addition, the
device offers two independent and selectable differential
mixer IF output ports to be used with dual mode IF filters and
requires low drive levels from the local oscillator. The
HFA3665 is one of the four chips in the PRISM™ chip set
and is housed in a small outline 28 lead SSOP package ide-
ally suited for cellular handset applications.
Ordering Information
PART NUMBER
HFA3665IA
HFA3665IA96
TEMP.
RANGE (oC)
-40 to 85
-40 to 85
PACKAGE
28 Ld SSOP
Tape and Reel
PKG.
NO.
M28.15
Pinout
HFA3665
(SSOP)
TOP VIEW
VCC 1
AGC_CTRL 2
PIN_O_IBIAS1 3
GND 4
LNA_OUT 5
LNA_OUT 6
GND 7
GND 8
LNA_IN 9
PIN_O_IBIAS2 10
PIN_I_GND 11
RX_PE 12
R_REF 13
BIAS_GND 14
28 MIX_VCC
27 SEL
26 MIX_VCC
25 MIX_IND
24 RF_IN
23 RF_RET
22 MIX_GND
21 LO_RET
20 LO_IN
19 CDMA_OUT-
18 CDMA_OUT+
17 FM_OUT-
16 FM_OUT+
15 BIAS_VCC
Block Diagram
LNA_OUT
RF_IN
LNA_IN
LNA
PIN_O_IBIAS1
PIN_O_IBIAS2
C
T
R
L
BIAS
RX_PE
AGC_CTRL
LO_IN
CDMA_OUT-
CDMA_OUT+
SW SEL
FM_OUT-
FM_OUT+
PRISM™ and the PRISM™ logo are trademarks of Intersil Corporation.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Intersil Corporation 1999
1
File Number 4301.5
1 page  
Production Test Diagram
HFA3665
MIXER RF IN
50Ω
VCC
AGC
9.53k
PIN BIAS 1
LNA OUT
50Ω
VLNA
2200p
C3
100p
LNA IN
50Ω
PIN BIAS 2
2200p
PE
220p
47p
C1
1 VCC
2 AGC_CTRL
3 PIN_O_IBIAS1
4 GND
1.5p
LNA_OUT
5
8.2n
NOTE 4
6
R9
7
LNA_OUT
100p
8
9 LNA_IN
10 PIN_O_IBIAS2
11 PIN_I_GND
0.01
12 RX_PE
13 R_REF
HFA3665
14 BIAS_GND
MIX_VCC
SEL
MIX_V
CC
MIX_IND
RF_IN
RF_RET
LO_RET
LO_IN
CDMA_OUT-
CDMA_OUT+
FM_OUT-
FM_OUT+
BIAS_VCC
100p
220p
0.1
47p
220p
18n
100p ? 4.7p
15n
15p
0.1
SEL
RF_LO_INPUT
50Ω
12p
100p
0.33
6.6K
220nH
7.5p
220nH
330nH
12p CDMA IF OUTPUT
50Ω
6.6K
220nH
7.5p
220nH
330nH
12p FM IF OUTPUT
50Ω
NOTE:
4. PC trace degeneration inductor. 93mil by 8mil trace terminating in a 10mil via. Via is tied to a buried solid ground plane 12mils deep.
Material is FR4 Er = 4.7.
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HFA3665IA.PDF ] | |
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