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參數資料
| 型號： | RF2861 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | CDMA LOW NOISE AMPLIFIER/MIXER 900MHz DOWNCONVERTER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC16 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, QFN-16 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 173K |
| 代理商： | RF2861 |
8-1
Product Description
Ordering Information
Typical Applications
Features
Functional Block Diagram
RF Micro Devices, Inc.
7628 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
InGaP/HBT
GaN HEMT
GaAs MESFET
Si CMOS
SiGe Bi-CMOS
IF OUT+
IF OUT-
GND
LO IN
V
13
L
14
T
E
15
E
16
G2
LNA IN
LNA EMITTER
LNA OUT
I
I
G
M
7
6
5
3
4
1
2
10
9
12
11
RF2861
CDMA LOW NOISE AMPLIFIER/MIXER
900MHz DOWNCONVERTER
CDMA/JCDMA Cellular Systems
CDMA450 Handsets/Data Cards
AMPS Cellular Systems
General Purpose LNA and Downconverter
Commercial and Consumer Systems
Portable Battery-Powered Equipment
The RF2861 is a receiver front-end for CDMA cellular
applications, including JCDMA and CDMA450. It is
designed to amplify and downconvert RF signals, using a
three gain state LNA to obtain 17dB of stepped gain con-
trol. Features include digital control of LNA gain and
power down mode, along with an integrated TX LO buffer
amplifier. Another feature of the chip is adjustable IIP3 of
the LNA and mixer using off-chip current setting resistors
to allow for minimum DC current consumption. Noise fig-
ure, IIP3, and other specs are designed to be compatible
with the TIA/EIA 98D standard for CDMA cellular commu-
nications. The IC is manufactured on an advanced Silicon
Germanium Bi-CMOS process and is in a 3mmx3mm,
16-pin, QFN.
3mmx3mm LNA/Mixer Solution
Adjustable LNA and Mixer Current/IIP3
Meets IMD Tests with Three Gain
States/Two Logic Control Pins
Integrated TX LO Buffer Amplifier
Full ESD Protection on all Pins
RF2861
CDMA Low Noise Amplifier/Mixer 900MHz Down-
converter
RF2861 PCBA-410 Fully Assembled Evaluation Board
0
Rev A2 040107
0.90
0.85
0.05 C
0.05
0.00
0.70
0.65
12°
MAX
-C-
SEATING
PLANE
1.50 TYP
0.10 C A
2 PLCS
-A-
3.00
0.10 C B
2 PLCS
1.37 TYP
0.10 C A
2 PLCS
2.75 SQ
0.10 C B
2 PLCS
3.00
-B-
0.60
0.24
TYP
0.50
0.30
PIN 1 ID
R.20
0.50
1.65
0.10
C A B
M
0.30
0.18
2
NOTES:
1. Shaded lead is pin 1.
Dimension applies to plated terminal: to be measured
between 0.20 mm and 0.25 mm from terminal end.
2
Dimensions in mm.
Package Style: QFN, 16-Pin, 3x3
9
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