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PDF LC72725KV Data sheet ( Hoja de datos )
| Número de pieza | LC72725KV | |
| Descripción | RDS(RBDS) Demodulation IC | |
| Fabricantes | ON Semiconductor | |
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Ordering number : ENA0503A
LC72725KV
CMOS IC
RDS(RBDS) Demodulation IC
http://onsemi.com
Overview
The LC72725KV is 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, and data buffer on chip. RDS data can be read
out from this on-chip memory by external clock input in slave operation mode.
Functions
• Bandpass filter: Switched capacitor filter (SCF)
• RDS Demodulation: 57KHz carrier and RDS data clock regeneration, biphase decode, differential decode.
• Buffer: 128 bit (about 100ms) can be restored in the on-chip data buffer RAM.
• Data output: Master or slave output mode can be selected.
• RDS-ID: Detect RDS signal which can be reset by RST signal input.
• Standby control: Crystal oscillator can be stopped.
• Fully adjustment free
• Low Voltage
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSSd = VSSa = 0V
Parameter
Maximum supply voltage
Maximum input voltage
Maximum output voltage
Maximum output current
* VDDa≤VDDd+0.3V
Symbol
VDD max
VIN1
max
VIN2
max
VO1 max
VO2 max
VO3 max
IO1 max
IO2 max
Pin Name
VDDd, VDDa *
TEST, MODE, XIN, RDCL, RST
MPXIN, CIN
RDS-ID(READY)
XOUT, RDDA, RDCL
FLOUT
XOUT, FLOUT, RDDA, RDCL
RDS-ID(READY)
Conditions
VDDa≤VDDd+0.3V
Ratings
-0.3 to +6.5
-0.3 to VDDd+0.3
-0.3 to VDDa+0.3
-0.3 to +6.5
-0.3 to VDDd+0.3
-0.3 to VDDa+0.3
+2.0
+8.0
Unit
V
V
V
V
V
V
mA
mA
Continued on next page.
Semiconductor Components Industries, LLC, 2013
June, 2013
60612HK 20060913-S00003/83006HKIM 20060822-S00002,20060823-S00002 No.A0503-1/9
1 page  
LC72725KV
Pin Descriptions
Pin No.
3
Pin Name
VREF
I/O
Output
Function
Reference voltage output (Vdda/2)
4
MPXIN
Input
Baseband (multiplexed) signal input
7
FLOUT
Output Subcarrier output (filter output)
8
CIN
Input
Subcarrier input (comparator input)
5
VDDa
- Analog system power supply (+3V)
6
VSSa
- Analog system ground
14
XOUT
Output Crystal oscillator output (4.332MHz)
13
XIN
Input
Crystal oscillator input
(external reference signal input)
9 TEST
10 MODE
15 RST
Test input
Read out mode (0:master, 1:slave)
RDS-ID/RAM reset (active high)
2
RDDA
Output RDS data output
16
RDCL
I/O RDS clock output (master mode) /
RDS read out clock input (slave mode)
1
RDS-ID/
Output RDS reliability data output
READY
(High:data with high RDS reliability
Low: data with low RDS reliability)
READY output (active high)
12 VDDd - Digital system power supply (+3V)
11 VSSd - Digital system ground
Pin Circuit
VDDa
VSSa
VDDd
VSSd
VDDa
VSSa
VREF
XIN
XOUT
VDDd
VSSd
S
VSSd
VDDd
VSSd
VDDd
VSSd
S
VSSd
No.A0503-5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LC72725KV.PDF ] | |
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