SI4735-D60-GU Silicon Laboratories Inc, SI4735-D60-GU Datasheet - Page 22

• Manufacturer Part Number: SI4735-D60-GU
• Description: RF RX FM AM SW LW 24 SSOP
• Manufacturer: Silicon Laboratories Inc
• Series: -r

Specifications of SI4735-D60-GU

• Mfg Application Notes: SI47xx Prog Guide AppNote
• Frequency: 153kHz ~ 279kHz, 520kHz ~ 1.71MHz, 2.3MHz ~ 26.1MHz, 64MHz ~ 108MHz
• Sensitivity: -
• Data Rate - Maximum: -
• Modulation Or Protocol: AM, FM, SW-LW
• Applications: General Purpose
• Current - Receiving: 18.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: -
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 24-SSOP (0.154", 3.90mm Width)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-2140

Si4730/31/34/35-D60
4. Functional Description
4.1. Overview
The Si473x-D60 CMOS AM/FM radio receiver IC
integrates the complete tuner function from antenna
input to audio output, including a stereo audio AUXIN
ADC input for converting analog audio to digital signals.
This feature enables a cost-efficient digital audio
platform for consumer electronics applications with high
TDMA noise immunity, superior radio performance, and
high
unmatched integration and PCB space savings, the
Si473x requires only two external components and less
than 15 mm
inputs. The Si473x AM/FM radio provides the space
savings and low power consumption necessary for
portable devices while delivering the high performance
and design simplicity desired for all AM/FM solutions.
Leveraging Silicon Laboratories' proven and patented
Si4700/01 FM tuner's digital low intermediate frequency
(low-IF) receiver architecture, the Si473x delivers
superior RF performance and interference rejection in
the AM, FM, SW, and LW bands. The high level of
integration and complete system production test
simplifies design-in, increases system quality, and
improves reliability and manufacturability.
The Si473x-D60 is a feature-rich solution that includes
advanced seek algorithms, soft mute, auto-calibrated
digital tuning, FM stereo processing and advanced
audio processing.
22
fidelity
2
of board area, excluding the antenna
audio
AM / LW
ANT
2.7~5.5 V
FM / SW
ANT
power
RFGND
RIN
LIN
FMI
GND
VDD
AMI
amplification.
Figure 7. Functional Block Diagram
LNA
LNA
LDO
AGC
AGC
Offering
Mux
Rev. 1.0
Mux
AFC
In addition, the Si473x provides analog and digital audio
outputs and a programmable reference clock. The
device supports I
and a Si4700/01 backwards-compatible 3-wire control
interface.
The Si473x utilizes digital signal processing to achieve
high fidelity, optimal performance, and design flexibility.
The chip provides excellent pilot rejection, selectivity,
and unmatched audio performance, and offers both the
manufacturer
programmability and a better listening experience.
The Si4731/35 incorporates a digital signal processor
for the European Radio Data System (RDS) and the
North American Radio Broadcast Data System (RBDS)
including
synchronization, error detection, and error correction
functions. Using this feature, the Si4731/35 enables
broadcast data such as station identification and song
name to be displayed to the user.
ADC
ADC
(Si4731/
LOW-IF
RDS
DSP
35)
all
Si473x-D60
INTERFACE
CONTROL
required
2
and
DIGITAL
C-compatible 2-wire control interface,
AUDIO
DAC
DAC
the
symbol
DOUT
DFS
GPO/DCLK
ROUT
LOUT
VD
1.62~3.6 V
end-user
decoding,
extensive
block