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LC72722PMSのメーカーはON Semiconductorです、この部品の機能は「Single-Chip RDS Signal-Processing System IC」です。 |
部品番号 | LC72722PMS |
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部品説明 | Single-Chip RDS Signal-Processing System IC | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとLC72722PMSダウンロード(pdfファイル)リンクがあります。 Total 18 pages
Ordering number : ENA2156
LC72722PMS
CMOS IC
Single-Chip RDS
Signal-Processing System IC
http://onsemi.com
Overview
The LC72722PMS is a single-chip system IC that implement the signal processing required by the European
Broadcasting Union RDS (Radio Data System) standard and by the US NRSC (National Radio System Committee)
RBDS (Radio Broadcast Data System) standard. This IC include band-pass filter, demodulator, synchronization, and
error correction circuits as well as data buffer RAM on chip and perform effective error correction using a soft-decision
error correction technique.
Functions
• Band-pass filter : switched capacitor filter (SCF)
• Demodulator : RDS data clock regeneration and demodulated data reliability information
• Synchronization : Block synchronization detection
(with variable backward and forward protection conditions)
• Error correction : Soft-decision/hard-decision error correction
• Buffer RAM : Adequate for 24 blocks of data (about 500ms) and flag memory
• Data I/O : CCB interface (power on reset)
Features
• Error correction capability improved by soft-decision error correction
• The load on the control microprocessor can be reduced by storing decoded data in the on-chip data buffer RAM.
• Two synchronization detection circuits provide continuous and stable detection of the synchronization.
• Data can be read out starting with the backward-protection block data after a synchronization reset.
• Fully adjustment free
Specifications
• Operating power-supply voltage :
• Operating temperature :
• Package :
4.5 to 5.5V
-40 to +85°C
MFP24(375mil)
• CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
• CCB is a registered trademark of Semiconductor Components Industries, LLC.
Semiconductor Components Industries, LLC, 2013
June, 2013
N1412HK B8-4452 No. A2156-1/18
1 Page LC72722PMS
Electrical Characteristics at Ta = -40 to 85°C, Vssd = Vssa = 0V
Parameter
Input resistance
Symbol
RMPXIN
Pin Name
MPXIN-Vssa
Rcin
CIN-Vssa
Conditions
f=57kHz
f=57kHz
Internal feedback
resistance
Center frequency
-3dB band width
Gain
Stop band
Attenuation
Reference voltage
output
Hysteresis
Output low-level
voltage
Input high-level
current
Input low-level
current
Output off leakage
current
Current drain
Rf XIN
fc
BW-3dB
Gain
Att1
Att2
Att3
Vref
FLOUT
FLOUT
MPXIN-FLOUT
FLOUT
FLOUT
FLOUT
Vref
f=57kHz
Δf=±7kHz
f<45kHz, f>70kHz
f<20kHz
Vdda=5.0V
VHIS
VOL1
VOL2
IIH1
IIH2
IIL1
IIL2
IOFF
Idd
CL, DI, CE, SYR, T1, T2
DO, T3, T4, T5, T6, T7
SYNC, RDS-ID
CL, DI, CE, SYR, T1, T2
XIN
CL, DI, CE, SYR, T1, T2
XIN
DO, SYNC, RDS-ID, T3,
T4, T5, T6, T7
Vddd, Vdda
I=2mA
I=8mA
VI= Vddd
VI=Vddd
VI=0V
VI=0V
VO=6.5V
Ratings
min typ max
43.0
100.0
1.0
56.5
2.5
28
30
40
50
2.0
2.0
57.0
3.0
31
2.5
0.1Vddd
9
57.5
3.5
34
0.5
0.5
5.0
11.0
5.0
11.0
5.0
Unit
kΩ
kΩ
MΩ
kHz
kHz
dB
dB
dB
dB
V
V
V
V
μA
μA
μA
μA
μA
mA
No. A2156-3/18
3Pages Pin Functions
Pin No.
Pin name
1 VREF
LC72722PMS
Function
Reference voltage output (Vdda/2)
2 MPXIN
Baseband (multiplexed) signal input
I/O
Output
Input
Pin circuit
Vdda
Vssa
Vdda
Vssa
5 FLOUT
Subcarrier output (filter output)
Output
Vdda
7 CIN
3 Vdda
4 Vssa
12 XOUT
13 XIN
Subcarrier input (comparator input)
Analog system power supply (+5V)
Analog system ground
Crystal oscillator output (4.332/8.664MHz)
Crystal oscillator input (external reference signal input)
Input
−
−
Output
Vssa
VREF
−
−
Vddd
XIN
XOUT Vssd
7 T1
8 T2
Test input (This pin must always be connected to ground.)
Test input (standby control)
0:Normal operation, 1:Standby state
(crystal oscillator stopped)
Input
S
Vssd
9 T3(RDCL)
Test I/O (RDS clock output)
10 T4(RDDA)
Test I/O (RDS data output)
11 T5(RSFT)
Test I/O (soft-decision control data output)
T6
16 (ERROR/57K/BE1)
Test I/O (error status, regenerated carrier, error block count)
T7 Test I/O
17 (CORREC/ARI-ID/BE0) (error correction status, SK detection, error block count)
I/O*
Vssd
18 SYNC
Block synchronization detection output
19 RDS-ID
20 DO
RDS detection output
Data output
Output
Vssd
21 CL
22 DI
23 CE
Clock input
Data input
Chip enable
Serial data interface (CCB)
Input
S
Vssd
24 SYR
Synchronization and RAM address reset (active high)
14 Vddd
Digital system power supply (+5V)
−−
15 Vssd
Digital system ground
−−
Note : * Normally function as an output pin. Used as an I/O pin in test mode, which is not available to user
applications.
No. A2156-6/18
6 Page | |||
ページ | 合計 : 18 ページ | ||
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PDF ダウンロード | [ LC72722PMS データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
LC72722PM | Single-Chip RDS Signal-Processing System LSI | Sanyo Semicon Device |
LC72722PM | Single-Chip RDS Signal-Processing System IC | ON Semiconductor |
LC72722PMS | Single-Chip RDS Signal-Processing System IC | ON Semiconductor |