SI4739 [SILICON]

Telecom Circuit, 1-Func, CMOS, QFN-20;


型号：	SI4739
厂家：	SILICON
描述：	Telecom Circuit, 1-Func, CMOS, QFN-20 电信电信集成电路
文件：	总2页 (文件大小：198K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Si4736/7/8/9

Broadcast AM/FM/WB Radio Receiver

(RBDS), and includes all required symbol decoding,

block synchronization, error detection, and error

correction functions. Using this feature, the Si4737/

39 enables broadcast data such as station

identification and song name to be displayed to the

user.

Description

The Si4736/37 and Si4738/39 are the industry's first

fully integrated, 100% CMOS AM/FM/WB and FM/

WB radio receiver ICs. Offering unmatched

integration and PCB space savings, the Si4736/37/

38/39 requires only two external components and

less than 15 mm of board area, excluding the

Features

antenna inputs. The Si4736/37/38/39 AM/FM/WB

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/WB solutions.

- Weather band support (162.4–162.55 MHz)

- Worldwide FM band support (76–108 MHz)

- Worldwide AM band support (520–1710 kHz)

(Si4736/7)

- 1050 Hz tone detection

Leveraging Silicon Laboratories' proven and

patented Si4700/01 FM tuner's digital low

intermediate frequency (low-IF) receiver architecture,

- AM/FM/WB digital tuning

- No manual alignment necessary

- Excellent real-world performance

the

Si4736/37/38/39

delivers

superior

- Dynamic channel filters

performance and interference rejection in both AM

and FM bands. The high integration and complete

system production test simplifies design-in,

- Advanced AM/FM seek tuning

- Digital volume control

- Adjustable soft mute control

- Frequency synthesizer with integrated VCO

- Automatic frequency control (AFC)

- Automatic gain control (AGC)

- Programmable de-emphasis

- Integrated LDO regulator

- Programmable reference clock

- FM RDS/RBDS processor (Si4736/7)

- 2-wire and 3-wire control interface

- 2.7 to 5.5 V supply voltage

increases

system

quality,

and

improves

manufacturability.

The Si4736/37/38/39 is a feature-rich solution

including 1050 Hz tone detection, advanced seek

algorithms, soft mute, auto-calibrated digital tuning,

and FM stereo processing. In addition, the Si4736/

37/38/39 provides analog and digital audio outputs

and a programmable reference clock. The device

supports I C-compatible, 2-wire control interface,

- 3 x 3 x 0.55 mm 20-pin QFN package

- Pb-free/RoHS compliant

SPI, and a Si4700/01 backwards-compatible, 3-wire

control interface.

The Si4736/37/38/39 utilizes digital 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 flexibility

in listening experience.

Applications

- Emergency radios

- Table and portable radios

- Stereos

- Mini/micro systems

- Portable media players

- Handsets

The Si4737/39 incorporates a digital processor for

the European Radio Data System (RDS) and the

North American Radio Broadcast Data System

- Boom boxes

- Clock radios

Si473x

AMI

RDS

(Si4737/

39)

DIGITAL

AUDIO

(Si4737/

39)

DOUT

LNA

ANT

RFGND

DFS

GPO/DCLK

AGC

LOW-IF

FM/

ANT

ADC

DAC

ROUT

LOUT

LNA

AGC

DSP

FMI

2.7– 5.5 V

VDD

GND

CONTROL

INTERFACE

LDO

AFC

VIO

1.5–3.6 V

AM/FM/WB Receiver

01.7.08

Si4736/7/8/9

Broadcast AM/FM/WB Radio Receiver

Selected FM Electrical Specifications

Parameter

Input Frequency

Symbol

Test Condition

Min

—

Typ

—

Max

108

—

Unit

MHz

µV EMF

dBµV EMF

f_RF

Sensitivity headphone matching

Sensitivity 50 Ω matching

Input IP3

(S+N)/N = 26 dB

|f₂– f₁| > 1 MHz; f₀= 2 x f₁– f₂

±200 kHz

2.2

1.1

105

—

Adjacent Channel Selectivity

Alternate Channel Selectivity

Audio Mono S/N

—

±400 kHz

—

Audio THD

—

0.1

—

Audio Output Voltage

Supply Voltage*

2.7

1.5

—

5.5

3.6

—

mVrms

V_D, V_A

V_IO

I_PD

—

Interface Supply Voltage*

Powerdown Current*

—

µA

*Note: Applies to AM, FM, and WB modes.

WB Receiver Characteristics

Parameter

Input Frequency

Symbol

f_R

Test Condition

Min

Typ

Max

Unit

MHz

µV EMF

162.4

—

1.2

162.55

—

Sensitivity

SINAD = 12 dB

+/-25 kHz

Mono

Adjacent Channel Selectivity

Audio S/N

—

Selected AM Electrical Specifications

Parameter

Input Frequency

Symbol

Test Condition

Medium wave (AM)

(S+N)/N = 26 dB

Min

Typ

Max

1710

—

Unit

kHz

f_RF

520

—

0.1

Sensitivity

µV EMF

Audio S/N

—

Audio THD

—

Audio Output Voltage

mVrms

Pin Assignments

3 x 3 x 0.55 mm, 20-pin QFN Package Information

Symbol

Millimeters

Min

0.50

0.00

0.18

0.27

Nom

0.55

0.02

0.25

0.32

3.00 BSC

1.70

0.50 BSC

3.00 BSC

1.70

Max

0.60

0.05

0.30

0.37

aaa

bbb

ccc

ddd

eee

20 19 18 17

FMI

15 DOUT

14 LOUT

13 ROUT

12 GND

11 VDD

1.60

1.80

FGND

AMI

GND

PAD

RST

2.53 BSC

0.40

0.35

0.00

—

0.45

0.10

0.08

0.10

—

AM/FM/WB Receiver

01.7.08

Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.

Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.

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