SI4704-D60-GM Silicon Laboratories Inc, SI4704-D60-GM Datasheet - Page 20

• Manufacturer Part Number: SI4704-D60-GM
• Description: IC FM RADIO TUNER 20-QFN
• Manufacturer: Silicon Laboratories Inc
• Series: -r

Specifications of SI4704-D60-GM

• Frequency: 64MHz ~ 108MHz
• Sensitivity: -
• Data Rate - Maximum: -
• Modulation Or Protocol: FM
• Applications: General Purpose
• Current - Receiving: 10.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: -
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-UFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Si4704/05-D60
4. Functional Description
4.1. Overview
The Si4704/05-D60 CMOS 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
Si4704/05-D60 requires only few external components
and less than 15 mm
antenna inputs. The Si4704/05-D60 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 FM
solutions.
Leveraging Silicon Laboratories' proven and patented
Si4700/01 FM tuner's digital low intermediate frequency
(low-IF) receiver architecture,
delivers superior RF performance and interference
rejection in the FM bands. The high level of integration
and complete system production test simplifies design-
in, increases system quality, and improves reliability and
manufacturability.
20
fidelity
2.7~5.5 V (QFN) / 2.0~5.5 V (SSOP)
audio
FM Antenna
+
2
32.768 kHz
power
of board area, excluding the
RFGND
RIN
amplification.
RCLK
LIN
GND
FMI
VA
the Si4704/05-D60
Figure 7. Functional Block Diagram
LNA
AFC
LDO
AGC
Offering
0/90
Rev. 1.0
Mux
The Si4704/05-D60 is a feature-rich solution that
includes advanced seek algorithms, soft mute, auto-
calibrated digital tuning, FM stereo processing and
advanced audio processing.
In addition, the Si4704/05-D60 provides analog and
digital audio outputs and a programmable reference
clock. The device supports I
control
compatible 3-wire control interface.
The Si4704/05-D60 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 and the end-user
extensive programmability and a better listening
experience.
The Si4705-D60 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 Si4705-D60 enables
broadcast data such as station identification and song
name to be displayed to the user.
Mux
interface,
ADC
ADC
all
Si4704/05-D60
(Si4705)
LOW-IF
required
RDS
DSP
INTERFACE
CONTROL
and
DIGITAL
AUDIO
DAC
DAC
a
symbol
Si4700/01
2
C-compatible 2-wire
decoding,
DOUT
DFS
GPO/DCLK
ROUT
LOUT
VD
1.62 - 3.6 V
backwards-
block