SAA6581T Datasheet, PDF (2/16 Pages) NXP Semiconductors – RDS/RBDS demodulator

Philips Semiconductors
RDS/RBDS demodulator
Product specification
SAA6581T
FEATURES
• Integrated switched capacitor filter
• Demodulates European Radio Data System (RDS) or
the USA Radio Broadcast Data System (RBDS) signals
• Oscillator frequencies: 4.332 or 8.664 MHz
• Integrated ARI clamping
• CMOS device
• Single supply voltage: 5 V
• Extended temperature range: −40 to +85 °C
• Low number of external components.
APPLICATIONS
The RDS/RBDS system offers a large range of
applications from the many functions that can be
implemented. For car radios the most important are:
• Program Service (PS) name
• Traffic Program (TP) identification
• Traffic Announcement (TA) signal
• Alternative Frequency (AF) list
• Program Identification (PI)
• Enhanced Other Networks (EON) information.
GENERAL DESCRIPTION
The RDS/RBDS demodulator is a CMOS device with
integrated filtering and demodulating of RDS/RBDS
signals coming from a multiplexed input data stream. Data
signal RDDA and clock signal RDCL are provided as
outputs for further processing by a suitable
microcomputer, for example CCR921 and CCR922.
The SAA6581T replaces SAA6579 in function and
pin-compatibility.
QUICK REFERENCE DATA
SYMBOL
V_DDA
V_DDD
I_DD(tot)
V_i(MPX)
f_i(xtal)
PARAMETER
analog supply voltage
digital supply voltage
total supply current
RDS input sensitivity at pin MPX
crystal input frequency
MIN.
4.0
4.0
−
1
−
−
TYP.
5.0
5.0
6.0
−
4.332
8.664
MAX.
5.5
5.5
−
−
−
−
UNIT
V
V
mA
mV
MHz
MHz
ORDERING INFORMATION
TYPE
NUMBER
SAA6581T
NAME
SO16
PACKAGE
DESCRIPTION
plastic small outline package; 16 leads; body width 7.5 mm
VERSION
SOT162-1
2001 May 07
2