SI4730-C40-GMR Silicon Laboratories Inc, SI4730-C40-GMR Datasheet

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SI4730-C40-GMR

Manufacturer Part Number
SI4730-C40-GMR
Description
IC RX AM/FM RADIO WORLD 20UQFN
Manufacturer
Silicon Laboratories Inc
Datasheet

Specifications of SI4730-C40-GMR

Frequency
520kHz ~ 1.71MHz, 64MHz ~ 108MHz
Modulation Or Protocol
AM, FM
Applications
General Purpose
Current - Receiving
19.9mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-20°C ~ 85°C
Package / Case
20-UQFN, 20-µQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Sensitivity
-
Memory Size
-
Data Rate - Maximum
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SI4730-C40-GMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
B
Features
Applications
Description
The Si4730/31 is the first digital CMOS AM/FM radio receiver IC that integrates
the complete tuner function from antenna input to audio output.
Functional Block Diagram
Rev. 1.0 12/09
Worldwide FM band support
(64–108 MHz)
Worldwide AM band support
(520–1710 kHz)
Excellent real-world performance
Freq synthesizer with integrated VCO
Advanced AM/FM seek tuning
Automatic frequency control (AFC)
Automatic gain control (AGC)
Digital FM stereo decoder
Programmable AVC max gain
Programmable de-emphasis
Seven selectable AM channel filters
AM/FM digital tuning
Table and portable radios
Stereos
Mini/micro systems
CD/DVD players
Boom boxes
ROADCAST
2.7– 5.5 V (QFN)
2.0– 5.5 V (SSOP)
ANT
ANT
FM
AM
RFGND
GND
VDD
AMI
FMI
LNA
LNA
AGC
AGC
LDO
AM/FM R
Copyright © 2009 by Silicon Laboratories
AFC
EN55020 compliant
No manual alignment necessary
Programmable reference clock
Volume control
Adjustable soft mute control
RDS/RBDS processor (Si4731)
Optional digital audio out (Si4731)
2-wire and 3-wire control interface
Integrated LDO regulator
2.0 to 5.5 V supply voltage (SSOP)
2.7 to 5.5 V supply voltage (QFN)
Wide range of ferrite loop sticks and
air loop antennas supported
QFN and SSOP packages
ADC
ADC
Modules
Clock radios
Mini HiFi
Entertainment systems
RoHS compliant
(Si4731)
LOW-IF
ADIO
RDS
DSP
INTERFACE
CONTROL
Si473x
DIGITAL
(Si4731)
AUDIO
DAC
DAC
R
DOUT
GPO/DCLK
ROUT
LOUT
VIO
1.85–3.6 V
ECEIVER
DFS
S i 4 7 3 0 / 3 1 - C 4 0
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
7,272,373;
7,355,476;
7,339,503; 7,339,504.
RFGND
GPO3/DCLK
RST
GPO2/INT
Ordering Information:
AMI
FMI
NC
RFGND
DOUT
GPO1
Si4730/31 (SSOP)
and
Pin Assignments
DFS
FMI
AMI
NC
NC
NC
NC
Si4730/31 (QFN)
2
3
4
5
1
6
See page 31.
7,272,375;
7,426,376;
20
7
10
11
12
1
2
3
4
5
6
7
8
9
domestic:
19
8
GND
PAD
18
9
24
23
22
21
20
19
18
17
16
15
14
13
Si4730/31-C40
17
10
16
11
15 DOUT
14
13
12
ROUT
DBYP
VDD
LOUT
VIO
RCLK
SDIO
SCLK
SEN
RST
GND
GND
7,127,217;
7,321,324;
7,471,940;
LOUT
ROUT
GND
VDD

Related parts for SI4730-C40-GMR

SI4730-C40-GMR Summary of contents

Page 1

... Table and portable radios  Stereos  Mini/micro systems  CD/DVD players  Boom boxes Description The Si4730/31 is the first digital CMOS AM/FM radio receiver IC that integrates the complete tuner function from antenna input to audio output. Functional Block Diagram AMI AM LNA ANT RFGND AGC FM ...

Page 2

... Si4730/31-C40 2 Rev. 1.0 ...

Page 3

... Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 10. Package Markings (Top Marks 10.1. Si4730/31 Top Mark (QFN 10.2. Top Mark Explanation (QFN 10.3. Si4730/31 Top Mark (SSOP 10.4. Top Mark Explanation (SSOP 11. Package Outline: Si4730/31 QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 12. PCB Land Pattern: Si4730/31 QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 13. Package Outline: Si4730/31 SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 14 ...

Page 4

... Exposure beyond recommended operating conditions for extended periods may affect device reliability. 2. The Si4730/31 devices are high-performance RF integrated circuits with certain pins having an ESD rating of < HBM. Handling and assembly of these devices should only be done at ESD-protected workstations. ...

Page 5

... I Analog Output Mode DDPD I SCLK, RCLK inactive IOPD 500 µA 0 OUT –500 µA OL OUT Rev. 1.0 Si4730/31-C40 Min Typ Max Unit — 19 — 19 — 19 — 15.4 20.5 mA — 320 600 µA — — µA — 0 –0.3 — 0 –10 — ...

Page 6

... Si4730/31-C40 Table 4. Reset Timing Characteristics (V = 2 1. Parameter RST Pulse Width and GPO1, GPO2/INT Setup to RST GPO1, GPO2/INT Hold from RST Important Notes: 1. When selecting 2-wire mode, the user must ensure that a 2-wire start condition (falling edge of SDIO while SCLK is high) does not occur within 300 ns before the rising edge of RST ...

Page 7

... RST. 3. When selecting 2-wire mode, the user must ensure that SCLK is high during the rising edge of RST, and stays high until after the first start condition. 4. The Si4730/31 delays SDIO by a minimum of 300 ns from the V t specification. ...

Page 8

... Si4730/31-C40 SU:STA HD:STA LOW 70% SCLK 30% 70% SDIO 30% START t r:IN Figure 2. 2-Wire Control Interface Read and Write Timing Parameters SCLK A6-A0, SDIO R/W START ADDRESS + R/W Figure 3. 2-Wire Control Interface Read and Write Timing Diagram HIGH t r:IN f: HD:DAT SU:DAT D7-D0 ACK DATA ACK Rev ...

Page 9

... HSDIO HIGH LOW t S A6-A5, R/W, A0 D15 A4-A1 Address HSDIO CDV t S A6-A5, R/W, A0 D15 A4-A1 ½ Cycle Bus Address In Turnaround Rev. 1.0 Si4730/31-C40 Min Typ Max Unit 0 — 2.5 MHz 25 — — — — — — — — — — ...

Page 10

... Si4730/31-C40 Table 7. SPI Control Interface Characteristics (V = 2 1. Parameter SCLK Frequency SCLK High Time SCLK Low Time SDIO Input, SEN to SCLKSetup SDIO Input to SCLKHold  Hold SEN Input to SCLK  to SDIO Output Valid SCLK  ...

Page 11

... Figure 8. Digital Audio Interface Timing Parameters – °C) A Symbol Test Condition t DCT t DCH t DCL t SU:DFS t HD:DFS t PD:DOUT t DCL t DCT t HD:DFS PD:OUT Rev. 1.0 Si4730/31-C40 Min Typ Max 26 — 1000 10 — — 10 — — 5 — — 5 — — 0 — SU:DFS 2 S Mode ...

Page 12

... Si4730/31-C40 Table 9. FM Receiver Characteristics (V = 2 1. Parameter Input Frequency Sensitivity with Headphone 3,4,5 Network Sensitivity with 50  Network 3,4,5,6 6 RDS Sensitivity 6,7 LNA Input Resistance 6,7 LNA Input Capacitance 6,8 Input IP3 3,4,6,7 AM Suppression Adjacent Channel Selectivity Alternate Channel Selectivity ...

Page 13

... MHz, ±8 MHz R Single-ended L C Single-ended L RCLK tolerance = 100 ppm From powerdown Input levels of 8 and 60 dBµ Input . AGC is disabled. Rev. 1.0 Si4730/31-C40 Min Typ Max Unit — 32 — dBµV — 38 — dBµV — 40 — ...

Page 14

... Si4730/31-C40 Table 10. 64–75.9 MHz Input Frequency FM Receiver Characteristics (V = 2 1. Parameter Input Frequency Sensitivity with Headphone 3,4,5 Network 7 LNA Input Resistance 7 LNA Input Capacitance 8 Input IP3 3,4,7 AM Suppression Adjacent Channel Selectivity Alternate Channel Selectivity 3,4,7 Audio Output Voltage ...

Page 15

... Stray capacitance on antenna and board must be < achieve full tuning range at higher inductance levels. 1,2 Test Condition f RF (S+N)/ THD < 8% ΔV = 100 mV , 100 Hz DD RMS From powerdown Rev. 1.0 Si4730/31-C40 Min Typ Max Unit 520 — 1710 kHz — µV EMF — ...

Page 16

... Crystal Frequency Tolerance Board Capacitance Notes: 1. The Si4730/31 divides the RCLK input by REFCLK_PRESCALE to obtain REFCLK. There are some RCLK frequencies between 31.130 kHz and 40 MHz that are not supported. For more details, see Table 6 of “AN332: Si47xx Programming Guide” frequency tolerance of ±50 ppm is required for FM seek/tune using 50 kHz channel spacing. ...

Page 17

... To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic, Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers. 5. Pin 2 connects to the FM antenna interface, and pin 4 connects to the AM antenna interface. 6. Place Si4730/31 as close as possible to antenna and keep the FMI and AMI traces as short as possible ...

Page 18

... To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic, Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers. 6. Pin 8 connects to the FM antenna interface, and pin 12 connects to the AM antenna interface. 7. Place Si4730/31 as close as possible to antenna and keep the FMI and AMI traces as short as possible ...

Page 19

... C1 Supply bypass capacitor, 22 nF, ±20%, Z5U/X7R C5 Coupling capacitor, 0.47 µF, ±20%, Z5U/X7R L1 Ferrite loop stick, 180 U1 Si4730/31 AM/FM Radio Tuner T1 Transformer, 1–5 turns ratio L2 Air loop antenna, 10–20 µH C2, C3 Crystal load capacitors, 22 pF, ±5%, COG (Optional for crystal oscillator option) ...

Page 20

... In AM mode, radio signals are received on AMI and processed by the AM front-end circuitry. In addition to the receiver mode, there is a clocking mode to choose to clock the Si4730/31 from a reference clock or crystal. On the Si4731, there is an audio output mode to choose between an analog and/or digital audio output. ...

Page 21

... The receiver mode and the audio output mode are set by the POWER_UP command listed in Table 14, “Selected Si473x Commands,” on page 26. 5.3. FM Receiver The Si4730/31 FM receiver is based on the proven Si4700/01 FM tuner. The receiver uses a digital low-IF architecture allowing the elimination components and factory adjustments ...

Page 22

... LSB Figure 12. DSP Digital Audio Format 5.6.1. Stereo Decoder The Si4730/31's automatically decodes the MPX signal using DSP techniques. The kHz (L+R) signal is the mono output of the FM tuner. Stereo is generated from the (L+R), (L–R), and a 19 kHz pilot tone. The pilot tone is used as a reference to recover the (L– ...

Page 23

... The serial port can operate in three bus modes: 2-wire mode, 3-wire mode, or SPI mode. The Si4730/31 selects the bus mode by sampling the state of the GPO1 and GPO2 pins on the rising edge of RST. The GPO1 pin includes an internal pull-up resistor, which is connected while Rev ...

Page 24

... SCLK. For read operations, the control word is followed by a delay of one-half SCLK cycle for bus turn-around. Next, the Si4730/31 will drive the 16-bit read data word serially on SDIO, changing the state of SDIO on each rising edge of SCLK. A transaction ends when the user sets SEN high, then pulses SCLK high and low one final time ...

Page 25

... Responses provide the user information and are echoed after a command and associated arguments are issued. All commands provide a 1-byte status update, indicating interrupt and clear-to-send status information. For a detailed description of the commands and properties for the Si4730/31, see “AN332: Si47xx Programming Guide.” Rev. 1.0 25 ...

Page 26

... Si4730/31-C40 6. Commands and Properties Table 14. Selected Si473x Commands Cmd Name 0x01 POWER_UP 0x10 GET_REV 0x11 POWER_DOWN 0x12 SET_PROPERTY 0x13 GET_PROPERTY 0x20 FM_TUNE_FREQ 0x21 FM_SEEK_START 0x23 FM_RSQ_STATUS 0x24 FM_RDS_STATUS 0x40 AM_TUNE_FREQ 0x41 AM_SEEK_START 0x43 AM_RSQ_STATUS 26 Description Powerup device and mode selection. Modes include receive, analog or digital output, and reference clock or crystal support ...

Page 27

... Sets the rate of attack when entering or leaving soft mute. The default is 278 dB/s. Sets maximum attenuation during soft mute (dB). Sets SNR threshold to engage soft mute. Default is 0 dB, which disables soft mute. Sets the bottom of the AM band for seek. Default is 520. Rev. 1.0 Si4730/31-C40 Default 0x0002 0x0031 0x001E 0x0000 0x0040 ...

Page 28

... Si4730/31-C40 Table 15. Selected Si473x Properties (Continued) Prop Name 0x3401 AM_SEEK_BAND_TOP AM_SEEK_FREQ_ 0x3402 SPACING AM_SEEK_SNR_ 0x3403 THRESHOLD AM_SEEK_RSSI_ 0x3404 THRESHOLD 0x4000 RX_VOLUME 0x4001 RX_HARD_MUTE 28 Description Sets the top of the AM band for seek. Selects frequency spacing for AM seek. Default is 10 kHz spacing. Sets the SNR threshold for a valid AM Seek/Tune. If the value is zero, then SNR threshold is not considered when doing a seek ...

Page 29

... Pin Descriptions: Si4730/31-GM RFGND Pin Number(s) Name connect. Leave floating. 2 FMI FM RF inputs. FMI should be connected to the antenna trace. 3 RFGND RF ground. Connect to ground plane on PCB. 4 AMI AM RF input. AMI should be connected to the AM antenna. 5 RST Device reset (active low) input. 6 SEN Serial enable input (active low). ...

Page 30

... Si4730/31-C40 8. Pin Descriptions: Si4730/31-GU Pin Number(s) Name 1 DOUT Digital output data in digital output mode. 2 DFS Digital frame synchronization input in digital output mode. 3 GPO3/DCLK General purpose output, crystal oscillator, or digital bit synchronous clock input in digital output mode. 4 GPO2/INT General purpose output or interrupt pin. ...

Page 31

... Add an “(R)” at the end of the device part number to denote tape and reel option; 2500 quantity per reel. SSOP devices operate down °C. DD Description Package Pb-free Pb-free Pb-free Pb-free Rev. 1.0 Si4730/31-C40 Operating Type Temperature/Voltage QFN – °C 2.7 to 5.5 V SSOP – °C 2.0 to 5.5 V QFN – ...

Page 32

... Line 3 Marking: Circle = 0.5 mm Diameter (Bottom-Left Justified Year WW = Workweek 32 3140 CTTT YWW 30 = Si4730 Si4731 Firmware Revision 4. Revision C Die. Internal tracking code. Pin 1 Identifier. Assigned by the Assembly House. Corresponds to the last significant digit of the year and work week of the mold date. Rev. 1.0 ...

Page 33

... Top Mark Explanation (SSOP) Mark Method: YAG Laser Part Number Line 1 Marking: Die Revision Firmware Revision YY = Year Line 2 Marking Work week TTTTTT = Manufacturing code 4730C40GU YYWWTTTTTT 4730 = Si4730; 4731 = Si4731 Revision C die Firmware Revision 4.0. Assigned by the Assembly House. Rev. 1.0 Si4730/31-C40 33 ...

Page 34

... Si4730/31-C40 11. Package Outline: Si4730/31 QFN Figure 14 illustrates the package details for the Si4730/31. Table 16 lists the values for the dimensions shown in the illustration. Figure 14. 20-Pin Quad Flat No-Lead (QFN) Symbol Millimeters Min Nom A 0.50 0.55 A1 0.00 0.02 b 0.20 0.25 c 0.27 0. ...

Page 35

... PCB Land Pattern: Si4730/31 QFN Figure 15 illustrates the PCB land pattern details for the Si4730/31-C40-GM QFN. Table 17 lists the values for the dimensions shown in the illustration. Figure 15. PCB Land Pattern Rev. 1.0 Si4730/31-C40 35 ...

Page 36

... Si4730/31-C40 Table 17. PCB Land Pattern Dimensions Symbol Millimeters Min 2.10 Notes: General 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing is per the ANSI Y14.5M-1994 specification. 3. This Land Pattern Design is based on IPC-SM-782 guidelines. 4. All dimensions shown are at Maximum Material Condition (MMC). Least Material Condition (LMC) is calculated based on a Fabrication Allowance of 0 ...

Page 37

... Package Outline: Si4730/31 SSOP Figure 16 illustrates the package details for the Si4730/31. Table 18 lists the values for the dimensions shown in the illustration. Dimension θ aaa bbb ccc ddd Notes: 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing per ANSI Y14.5M-1994. ...

Page 38

... Si4730/31-C40 14. PCB Land Pattern: Si4730/31 SSOP Figure 17 illustrates the PCB land pattern details for the Si4730/31-C40-GU SSOP. Table 19 lists the values for the dimensions shown in the illustration. Table 19. PCB Land Pattern Dimensions Dimension General: 1. All dimensions shown are in millimeters (mm) unless otherwise noted. ...

Page 39

... Contact your local sales representatives for more information or to obtain copies of the following references:  EN55020 Compliance Test Certificate  AN332: Si47xx Programming Guide  AN383: Si47xx Antenna, Schematic, Layout, and Design Guidelines  AN388: Si470x/1x/2x/3x/4x Evaluation Board Test Procedure Si4730/31-C40 Rev. 1.0 39 ...

Page 40

... Updated Table 9 on page 12.  Updated Table 11 on page 15.  Updated "3. Typical Application Schematic (SSOP)" on page 18.  Updated "4. Bill of Materials (QFN/SSOP)" on page 19.  Updated "8. Pin Descriptions: Si4730/31-GU" on page 30.  Updated "9. Ordering Guide" on page 31. 40 1,2 ,” Rev. 1.0 ...

Page 41

... N : OTES Si4730/31-C40 Rev. 1.0 41 ...

Page 42

... Si4730/31-C40 C I ONTACT NFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Email: FMinfo@silabs.com Internet: www.silabs.com The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. ...

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