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參數資料
| 型號： | RF2670 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 通信及網絡 |
| 英文描述： | 8MHZ DUAL BASEBAND AGC WITH PROGRAMMABLE LOW PASS FILTERING |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO24 |
| 封裝： | SSOP-24 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 204K |
| 代理商： | RF2670 |
10-45
10
I
Produc t Desc ription
Ordering Information
Typic al Applic ations
Features
Func tional Block Diagram
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
Optimum Technology Matching Applied
Si BJT
GaAs HBT
Si Bi-CMOS
SiGe HBT
GaAs MESFET
Si CMOS
0-25 dB
0-20 dB
-12-+12
17dB
6 dB
PD
BW SEL2
BW SEL1
RSSI Q
RSSI I
VREF
IN I+
IN I-
DCFB I
V
5
DCFB Q
IF OUT Q
Q DATA
V
8
V
20
IN Q+
IN Q-
IF OUT I
I DATA
1
2
11
14
13
24
23
19
15
18
21
10
17
16
9
7
4
VGC
DC
Bias
RF2670
8 MHZ DUAL BAS EBAND AGC WIT H
PR OGR AMMABLE LOW PAS S FILT ERING
Digital Cordless Telephones
Secure Communication Links
Wireless LANs
Inventory Tracking
Wireless Security
Battery Powered Applications
The RF2670 is a monolithic integrated circuit specifically
designed for direct conversion to baseband QPSK receiv-
ers. The part provides dual baseband amplifiers with a
70dB gain range (single pin analog input) and separate I
and Q RSSI. On-chip programmable baseband filters are
incorporated into each amplifier providing 1MHz, 2MHz,
4MHz, or 8MHz bandwidth with a 5-pole Bessel
response. I and Q output are available in digital or analog
form. The data comparators use a self generated DC ref-
erence to track DC offsets in the received signal. The
analog outputs have a 500mVpp swing with approxi-
mately 1.7V DC offset. A 2.0V reference voltage is also
available for A/D converters changing DC bias.
I/Q Baseband Receivers
10dB to 80dB Gain Range
Digital and Analog Outputs
On-Chip Selectable IF Bandwidths
Reference Voltage for A/D Converter
2.7V to 3.6V Operation
RF2670
8MHz Dual Baseband AGC with Programmable Low
Pass Filtering
Fully Assembled Eval Board.
RF2670PCBA
10
Rev A4 010820
.069
.053
.050
.016
8°MAX
0°MIN
.010
.008
.157
.150
.244
.228
1
.344
.337
.012
.008
.025
.010
.004
.033
Package S tyle: S S OP-24
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