SPRF2738A Datasheet, PDF (3/12 Pages) List of Unclassifed Manufacturers – Low Power FM/FSK IF IC

SPRF2738A
LOW POWER FM/FSK IF IC
1. GENERAL DESCRIPTION
2. FEATURES
SPRF2738A is a highly integrated IF (Intermediate Frequency) IC
„ Operation voltage: 2.4V - 5.5V
which is popularly used in FM / FSK (Frequency Modulation /
„ Low current consumption: 2.5mA @ VDD = 3.0V.
Frequency-Shift Keying) or OOK (On-Off Keying) communication
„ Operating frequency up to 50MHz
systems.
„ Power down function
„ Single chip FM/FSK or OOK receiver.
It also contains a low noise amplifier, mixer, oscillator, IF limiting
amplifier with RSSI (Received Signal Strength Indicator, metal
l _{optioned), quadrature demodulator, amplifier, and digital data}
tia ^{ly slicer. The SPRF2738A is designed for single channel receiver at}
10MHz - 50MHz band. It is also applicable for dual conversions
fiden _se ^{On communication system.}
„ RSSI function (metal option)
„ -107dBm sensitivity (SNR = 12dB)
„ Full ESD protection
3. APPLICATION FIELD
„ Dual conversion IF
„ Voice/data communication.
„ Radio control toy
„ Wireless keyboard, mouse receiver
Con B ^U 4. BLOCK DIAGRAM
SunpRluAsRSAA ^LNAI
VDD
MXO
1.8KΩ
LNA
LMI
RSSI
LMO QUAD
CF
1.8KΩ
RSSI
DEMO
OPP
1.9V
QDEM
60k
100k
OPO
OPN
or BOSC
60k
F ^DOB
VSS
OSCO
OSCI
PD
CN
CP
DO
© Sunplus Technology Co., Ltd.
3
Proprietary & Confidential
APR. 30, 2003
Version: 1.2