Si4777-A20-GMR datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Topical application> Wireless rf/communication> Si4777-A20-GMR

Si4777-A20-GMR: DescriptionRF receiver Hi-performance CE AM/FM rcvr/HD-tuner; CategoryTopical application Wireless rf/communication; File Size2MB，54 Pages; ManufacturerSilicon; Environmental Compliance

Download Datasheet Compare View All

Si4777-A20-GMR Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	Si4777-A20-GMR	-	-	View	Buy Now

Si4777-A20-GMR Overview

RF receiver Hi-performance CE AM/FM rcvr/HD-tuner

Preview

Download Datasheet

View All

Si4770/77-A20

I G H

- P

ERFORMANCE

ONSUMER

LECTRONICS

ROADCAST

ADIO

ECEIVER A N D

HD R

ADIO

UNER

Features



Worldwide FM band support

(64–108 MHz)

Worldwide AM band support

(520–1710 kHz)

AM/FM HD Radio support

(Si4777 only)

Comprehensive signal quality

metrics: RSSI, SNR, multipath

interference, frequency offset,

adjacent channel RSSI,

frequency deviation, and image

RSSI

Advanced patented RDS soft-

decision decoder

Advanced, patented FM channel

equalizer for multipath

interference

Dynamic AM/FM channel

bandwidth control

Programmable AM/FM soft mute

FM stereo-mono blend

FM hi-blend control

AM/FM hi-cut control



AM lo-cut filter



L/R analog and digital (I

S) audio

outputs

Digital Low-IF architecture

Frequency synthesizer with fully

integrated PLL-VCO

Fully integrated AM/FM front-end

including high performance LNA,

AGC with integrated resistor and

capacitor banks, and RF and IF

peak detectors

Integrated crystal oscillator

Ordering Information:

See page 49.

Pin Assignments

Si4770/77-A20

LOUT/

MPXOUT

FMAGC1

FMAGC2

DACREF

RCLK/

XTAL2

XTAL1

GPIO1

GPIO2

ROUT

Digital (I

S) Zero-IF AM/FM I/Q

outputs (Si4777 only)



1.2 to 5 V power supplies



QFN 40-pin, 6x6x0.85 mm



Pb-free/RoHS

compliant

FMXIP

FMXIN

RFGND

RFREG

FMO

FMI

NC/BLEND

DCLK

DFS

DOUT

NC/QOUT

NC/IOUT

NC/IQFS

NC/IQCLK

VIO2

DBYP

GND PAD

Applications

Audio/video receivers



Consumer electronics



Boom boxes



Home theater systems



AMI

A1/INTB

NC/DCLK2

NC/DOUT2

RSTB

SDA

SCL

INTB/DFS2

VIO1

Description

The Si4770/77-A20 broadcast receiver and HD Radio tuner (Si4777 only)

employs an advanced, proven digital low-IF architecture to bring

outstanding receiver performance to high-performance consumer

electronics.

Patents pending

Rev. 0.9 6/12

Si4770/77-A20

This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

Si4770/77-A20

ABLE

Section

ONTENTS

Page

1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2. Typical Application Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3. Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.2. Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.3. Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.4. FM Receiver Front-End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.5. AM Receiver Front-End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.6. Received Signal Qualifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.7. Digital Audio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.8. Channel Equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.9. Digital ZIF I/Q Interface (Si4777 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.10. IBOC Blend Mode for HD Radio (Si4777 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.11. Stereo Audio Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

4.12. De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.13. Analog Audio and FM MPX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.14. Soft Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.15. AM/FM Dynamic Bandwidth Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.16. Seek and Valid Station Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.17. AM Hi-Cut Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.18. FM Hi-Cut Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.19. FM Hi-Blend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.20. AM Lo-Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

5. RDS/RBDS Advanced Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6. Programming Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

7. I

C Control Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

7.1. I

C Device Address Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

7.2. I

C Standard Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

8. Reset, Powerup, and Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

9. Pin Descriptions: Si4770/77-A20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

10. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

11. Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

12. PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

13. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

13.1. Si4770/77-A20 Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

13.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

Rev. 0.9

Si4777-A20-GMR Related Products

	Si4777-A20-GMR	Si4770-A20-GMR
Description	RF receiver Hi-performance CE AM/FM rcvr/HD-tuner	RF receiver cons. elect. pro-aud AM/FM rds Rx

Recommended Resources

Z3040 drilling machine circuit

Extension simulation picking machine circuit diagram

555 flow proportional totalizer circuit

sound level generator circuit

Rapid battery charging device

Computer motherboard circuit diagram 815 1_18

Samsung adopts power management technology developed by ARM and National Semiconductor: Samsung adopts power management technology developed by ARM and National SemiconductorSamsung's highly integrated application processors with built-in advanced power controllers (APC) help extend batt...; fighting Analog electronics

【ESP32】ADC Update: [i=s]This post was last edited by 47857872 on 2018-6-1 00:10[/i] In the 1.9.4 version of the ESP32 mpy firmware, the ADC part may have some changes compared to the previous one, so I'll post it here. ...; 47857872 MicroPython Open Source section

Tesla's electric motor: Author: Mechanical FrontThe best disassembly team is in action again. Today they disassembled a Tesla electric motor that was flooded with water. Let's take a look at what's inside a Tesla electric mo...; btty038 RF/Wirelessly

I found a treasure! There will be a large number of mysterious boards arriving at EEWORLD in the future!: I got the news at noon, so happy hahaha:)It's a really big batch of boards. It's enough for people in the forum to play with for a while. But I haven't figured out how to post them yet. I'll think abo...; soso Microcontroller MCU

How to display image shadow under wince: Fill the circle with color. Wince cannot use CreateHatchBrush to display various shadows. What other functions can be used to display them? Draw a straight line. Wince cannot use another function of C...; wodi520 Embedded System

Linux2.6 complete transplantation tutorial, based on TQ2440 development board: A good tutorial for development board transplantation, good news for beginners. Are you still worried about Linux transplantation? Are you still having a headache for Linux drivers? Are you still depr...; freewing MCU

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components