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PDF RF2642 Data sheet ( Hoja de datos )
| Número de pieza | RF2642 | |
| Descripción | 3V 900MHZ UPCONVERTER/ DRIVER AMPLIFIER WITH BYPASS MODE | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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Preliminary
6
Typical Applications
• CDMA/AMPS Cellular Systems
• TDMA/AMPS Cellular Systems
RF2642
3V 900MHZ UPCONVERTER/
DRIVER AMPLIFIER WITH BYPASS MODE
• General Purpose Upconverter/Driver
• Portable Battery-Powered Equipment
Product Description
The RF2642 is a complete upconverter and power ampli-
fier driver designed for CDMA applications. The design
features driver amplifier high and low gain states. In the
low gain state, the gain is adjustable and the device
draws less current. The upconverter is always on. The
power down mode turns off the driver amplifier. The
device features balanced IF inputs, single-ended LO
input and RF output for ease of interface. Packaged in an
industry standard 4mmx4mm, 16-pin, leadless chip car-
rier, the device provides a low-cost solution while easing
board space limitations.
3.75
3.75
21
0.45 0.80
0.28
0.75
TYP 1
0.50
+ 1.60 4.00
INDEX AREA 3
12°
Dimensions in mm.
0.75 1.00
0.65 0.90
0.05
0.00
1.50 SQ
3.20
4.00
NOTES:
1 Shaded Pin is Lead 1.
2
Dimension applies to plated terminal and is measured between
0.10 mm and 0.25 mm from terminal tip.
The terminal #1 identifier and terminal numbering convention
3 shall conform to JESD 95-1 SPP-012. Details of terminal #1
identifier are optional, but must be located within the zone
indicated. The identifier may be either a mold or marked
feature.
4 Pins 1 and 9 are fused.
5 Package Warpage: 0.05 max.
Optimum Technology Matching® Applied
Si BJT
üSi Bi-CMOS
GaAs HBT
SiGe HBT
GaAs MESFET
Si CMOS
1
RF OUT 2
RF GND2 3
RF GND1 4
16 15 14 13
Logic
Control
12 GND
11 IF+
10 IF-
Package Style: LCC, 16-Pin, 4x4
Features
• Single Supply 3.0V Operation
• Step Gain Control
• Power Down Control
• ACPR1=61dBc@885kHz with
POUT =+5dBm
• Small Leadless LCC 16-Pin Package
5 67 8 9
Functional Block Diagram
Ordering Information
RF2642
RF2642 PCBA
3V 900MHz Upconverter/ Driver Amplifier with
Bypass Mode
Fully Assembled Evaluation Board
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
6
Rev A2 010720
6-49
1 page  
Preliminary
RF2642
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
NOTE:
1. R1, R2 and R8 are optional.
2. R4, R5 and R6 form T-attenuator with a loss of 1 dB.
For 0 dB loss, R4 and R6 are removed, and R5 is a 0 Ω short.
3. R3 and R7 are normally open.
4. FLT BP recommended is a Murata filter: SAFC836.5MC90T-TC12.
5. The microstrip on pin 4 is bridged to ground via 0 Ω 0402 size resistor.
The recommended setting is at maximum of PCB.
6. The microstrip on pin 3 is bridged to ground via 0 Ω resistor. The
recommended setting is at a distance of 35 mils from edge of device.
7. *DNI: Do Not Install
R8*
DNI
J1
PA OUT
VPA2
P1
1
2 GND
P1-3 3 PD
CON3
P2
P2-1 1 Gain Select
2 GND
P2-3 3 VCC
CON3
P3
P3-1 1 VPA1
2 GND
P3-3 3 VPA2
CON3
VPA1
J2
PA IN
50 Ω µstrip
L4
3.9 nH
C1
1 nF
C2
10 nF
See Note 6
L1
8.2 nH
R1*
DNI
µstrip
R9
0Ω
See Note 5
µstrip
R10
0Ω
C3
10 nF
C10 VCC
10 nF
Gain Select
C11
1 nF
50 Ω µstrip
J5
LO IN
C9
10 nF
C12
1 nF
1 16 15 14 13
Logic
2 Control
3
4
12
11
10
5 67 8 9
C7
1 nF
T1
TRANS6 50 Ω µstrip
C8
1 nF
2642400B
L2
8.2 nH
R2*
DNI
50 Ω µstrip
C5
10 nF
PD
C4
1 nF
R3*
DNI
R5
5.1 Ω
FL1
FLT BP
R4
820 Ω
R6
820 Ω
See Note 2
C6
1 nF
R7*
DNI
50 Ω µstrip
J4
IF IN
J3
MIX OUT
6
Rev A2 010720
6-53
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet RF2642.PDF ] | |
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