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Número de pieza | SI4704-C40 | |
Descripción | (SI4704 / SI4705) BROADCAST FM RADIO RECEIVER | |
Fabricantes | Silicon Laboratories | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de SI4704-C40 (archivo pdf) en la parte inferior de esta página. Total 36 Páginas | ||
No Preview Available ! Si4704/05-C40
BROADCAST FM RADIO RECEIVER FOR CONSUMER
ELECTRONICS
Features
Worldwide FM band support
Programmable reference clock
(64–108 MHz)
Volume control
Integrated antenna support
Adjustable soft mute control
EN55020 compliant
RDS/RBDS processor (Si4705)
Excellent real-world performance Optional digital audio out (Si4705)
Freq synthesizer with integrated VCO 2-wire and 3-wire control interface
Advanced FM seek tuning
Integrated LDO regulator
Automatic frequency control (AFC) Signal quality measurements
Automatic gain control (AGC)
2.7 to 5.5 V supply voltage
Digital FM stereo decoder
3x3 mm 20-pin QFN package
Minimal BOM
RoHS compliant
Programmable de-emphasis
Applications
Table and portable radios
Stereos
Mini/micro systems
CD/DVD players
Boom boxes
Modules
Clock radios
Mini HiFi
Entertainment systems
Description
The Si4704/05 integrates all functions required for an advanced broadcast FM
radio receiver, from antenna input to stereo audio output.
Functional Block Diagram
Ordering Information:
See page 28.
Pin Assignments
Si4704/05-GM (Top View)
NC 1 20 19 18 17 16
FMI 2
15 DOUT
RFGND 3
LPI 4
GND
PAD
14 LOUT
13 ROUT
RST 5
12 GND
6 7 8 9 10 11 VDD
FM Antenna
FMI
RFGND
LPI
32.768 kHz
RCLK
2.7–5.5 V VDD
LNA
AGC
AFC
REG
0/90
XTAL
OSC
Si4704/05
ADC DAC
PGA DSP
ADC DAC
LOUT
ROUT
RSSI
RDS
(Si4705)
CONTROL
INTERFACE
GPO
DCLK
DOUT
DFS
This product, its features, and/or its
architecture is covered by one or more of
the following patents, as well as other
patents, pending and issued, both
foreign and domestic: 7,127,217;
7,272,373; 7,272,375; 7,321,324;
7,355,476; 7,426,376; 7,471,940;
7,339,503; 7,339,504.
Rev. 1.0 12/09
Copyright © 2009 by Silicon Laboratories
Si4704/05-C40
Free Datasheet http://www.datasheet4u.com/
1 page Si4704/05-C40
Table 3. DC Characteristics
(VDD = 2.7 to 5.5 V, VIO = 1.85 to 3.6 V, TA = –20 to 85 °C)
Parameter
Symbol Test Condition Min Typ Max
FM Receiver to Line Output
Supply Current1
Supply Current2
RDS Supply Current1
IFM
IFM Low SNR level
IFM
Supplies and Interface
— 19.2 22
— 19.9 23
— 19.2 23
Interface Supply Current
IIO
— 320 600
VDD Powerdown Current
IDDPD
— 10 20
VIO Powerdown Current
High Level Input Voltage3
Low Level Input Voltage3
High Level Input Current3
Low Level Input Current3
High Level Output Voltage4
Low Level Output Voltage4
IIOPD SCLK, RCLK inactive
—
1
10
VIH 0.7 x VIO — VIO + 0.3
VIL
–0.3
— 0.3 x VIO
IIH VIN = VIO = 3.6 V –10
—
10
IIL
VIN = 0 V,
–10 —
10
VIO = 3.6 V
VOH
IOUT = 500 µA
0.8 x VIO
—
—
VOL IOUT = –500 µA
—
— 0.2 x VIO
Notes:
1. Guaranteed by characterization.
2. LNA is automatically switched to higher current mode for optimum sensitivity in weak signal conditions.
3. For input pins SCLK, SEN, SDIO, RST, RCLK, DCLK, DFS, GPO1, GPO2, and GPO3.
4. For output pins SDIO, DOUT, GPO1, GPO2, and GPO3.
Unit
mA
mA
mA
µA
µA
µA
V
V
µA
µA
V
V
Rev. 1.0
5
Free Datasheet http://www.datasheet4u.com/
5 Page Si4704/05-C40
Table 8. Digital Audio Interface Characteristics
(VDD = 2.7 to 5.5 V, VIO = 1.85 to 3.6 V, TA = –20 to 85 °C)
Parameter
Symbol Test Condition
DCLK Cycle Time
DCLK Pulse Width High
DCLK Pulse Width Low
DFS Set-up Time to DCLK Rising Edge
DFS Hold Time from DCLK Rising Edge
DOUT Propagation Delay from DCLK Falling
Edge
tDCT
tDCH
tDCL
tSU:DFS
tHD:DFS
tPD:DOUT
Min
26
10
10
5
5
0
Typ Max Unit
— 1000 ns
— — ns
— — ns
— — ns
— — ns
— 12 ns
DCLK
DFS
DOUT
tDCH
tDCL
tDCT
tHD:DFS
tSU:DFS
tPD:OUT
Figure 8. Digital Audio Interface Timing Parameters, I2S Mode
Rev. 1.0
11
Free Datasheet http:/
11 Page |
Páginas | Total 36 Páginas | |
PDF Descargar | [ Datasheet SI4704-C40.PDF ] |
Número de pieza | Descripción | Fabricantes |
SI4704-C40 | (SI4704 / SI4705) BROADCAST FM RADIO RECEIVER | Silicon Laboratories |
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