SI4770-A20 [SILICON]
Telecom Circuit, 1-Func, CMOS, QFN-40;
| 型号： | SI4770-A20 |
| 厂家： | 
SILICON |
| 描述： | Telecom Circuit, 1-Func, CMOS, QFN-40 电信 电信集成电路 |
| 文件： | 总2页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Si4770/77-A20
High-Performance Consumer Electronics
Broadcast Radio Receiver and HD Radio Tuner
Features
Description
The Silicon Labs Si4770/77-A20 represents the world's first
high performance single-chip mixed signal CMOS receiver
targeting high-end consumer electronics. The device is a
true all-in-one chip, receiving RF with zero-BOM
implementation, and performing all required demodulation
and signal conditioning to provide digital I2S audio and / or
left and right analog audio out. The Si4777 also supports
AM/FM HD radio channel reception with digital (I2S) zero-IF
(ZIF) I/Q outputs for interface to an HD radio processor.
The Si4770/77-A20 leverages Silicon Labs' long and
proven history of delivering mixed signal low-intermediate-
frequency (low-IF) ICs. The low-IF digital architecture and
leading mixed signal design provide superior RF
- Worldwide FM band support
(64–108 MHz)
- Worldwide AM band support (520–1710 kHz)
- Comprehensive signal quality metrics: RSSI, SNR, mul-
tipath 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
performance and interference rejection in
a
highly
- L/R analog and digital (I2S) audio outputs
integrated, single chip device. As the leader in mixed signal
CMOS, Silicon Labs has now shipped over 2 billion such
devices.
The fully integrated analog chain receives analog broadcast
bands including AM and FM. The solution offers superior
on-chip filtering and signal conditioning, and incorporates
automatic channel bandwidth adjustment, sub-2 msec tune
time and corresponding very fast seek time, highly effective
seek algorithms, and advanced audio conditioning including
- Digital (I2S) zero-IF AM/FM I/Q outputs (Si4777 only)
- Digital Low-IF architecture
- Frequency synthesizer with fully integrated PLL-VCO
- Fully integrated AM/FM front-end including high perfor-
mance LNA, AGC with integrated resistor and capacitor
banks, and RF and IF peak detectors
- Integrated crystal oscillator
- 1.2 to 5 V power supplies
- QFN 40-pin, 6x6x0.85 mm
- Pb-free/RoHS compliant
programmable soft mute, multi-path mitigation
cancellation, stereo-mono blend and hi-cut / lo-cut.
/
Applications
The Si4770/77-A20 also incorporates the world's leading
FM R(B)DS decoder, including all required symbol
decoding, block synchronization, error detection, and error
correction functions.
- Audio/video receivers
- Consumer electronics
- Boom boxes
- Home theater systems
Si4770/77
LOUT/
MPXOUT
ADC
ADC
DAC
DAC
FMXIP
DSP
IF PKD
RF PKD
FMXIN
ROUT
RFREG
REG
LNA
RL
DCLK
DFS
DOUT
FMO
FMI
0°/90°
RDS
RF PKD
RF PKD
INTB
RSTB
VIO1
VIO2
AMI
LNA
CNTRL
ClK
Gen
RFGND
AM/FM Receiver and HD-R Tuner
Copyright © 2012 by Silicon Laboratories
06.12.12
Si4770/77-A20
High-Performance Consumer Electronics
Broadcast Radio Receiver and HD Radio Tuner
Selected Electrical Specifications
Parameter
Ambient temperature
Analog supply voltage 5 V (VA)
Digital supply voltage 3.3 V (VD)
Interface supply voltage (VIO1)
Interface supply voltage (VIO2)
Analog supply current (FM mode)
Analog supply current (AM mode)
Digital supply current
Interface supply current (VIO1)
Interface supply current (VIO2)
FM
Test Conditions
Min
–40
4.5
2.7
1.7
1.2
121
129
47
Typ
25
Max
85
Units
°C
5
5.5
3.6
3.6
3.6
139
147
81
V
3.3
3.3
3.3
130
140
60
V
V
V
mA
mA
mA
mA
mA
0.1
0.1
0.5
0.2
0.82
0.5
Input frequency
64
—
—
1.5
20
108
—
MHz
msec
msec
dBµV
dBµV
Tune time
Seek time/channel
—
—
IP3
Blockers at 400/800 kHz offset
SINAD = 26 dB
115
—
117
–3.5
—
Sensitivity
–2
AM
Input frequency
520
—
—
55
1710
—
kHz
Seek time/channel
msec
dBµV
142
—
Desired = 700 kHz
Undesired = 1000, 1700 kHz
AGC Disabled (Max Gain)
Blockers at 40/80 kHz offset
AGC Disabled (Max Gain)
SINAD = 26 dB
146
IP2
IP3
110
—
—
120
14
dBµV
Sensitivity
17
dBµV EMF
Pin Assignment
Package Information
1
2
30
29
28
27
26
25
24
23
22
21
NC
FMXIP
FMXIN
RFGND
RFREG
FMO
NC/BLEND
DCLK
3
DFS
4
DOUT
5
NC/QOUT
NC/IOUT
NC/IQFS
NC/IQCLK
VIO2
GND PAD
6
7
FMI
8
NC
9
NC
10
AMI
DBYP
Symbol
Millimeters
Symbol
Millimeters
Min
0.80
0.00
0.18
Nom
0.85
0.02
0.25
6.00 BSC
4.10
Max
0.90
0.05
0.30
Min
3.95
0.30
Nom
4.10
0.40
0.10
0.10
0.08
0.10
0.05
Max
4.25
0.50
A
A1
b
D
D2
e
E2
L
aaa
bbb
ccc
ddd
eee
3.95
4.25
0.50 BSC
6.00 BSC
E
AM/FM Receiver and HD-R Tuner
Copyright © 2012 by Silicon Laboratories
06.12.12
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
相关型号：
©2020 ICPDF网 联系我们和版权申明