- -
52
◆
Crystal reference frequency oscillator; the oscillator operates with a 32.768 kHz clock crystal or
with a 13 MHz crystal and with an externally applied 6.5 MHz reference frequency
◆
PLL synthesizer tuning system
◆
I2C-bus and 3-wire bus, selectable via pin BUSMODE
◆
7-bit IF counter output via the bus
◆
4-bit level information output via the bus
◆
Soft mute
◆
Signal dependent mono to stereo blend [Stereo Noise Cancelling (SNC)]
◆
Signal dependent High Cut Control (HCC)
◆
Soft mute, SNC and HCC can be switched off via the bus
◆
Adjustment-free stereo decoder
◆
Autonomous search tuning function
◆
Standby mode
◆
Two software programmable ports
◆
Bus enable line to switch the bus input and output lines into 3-state mode
◆
Automotive temperature range (at VCCA, VCC(VCO) and VCCD = 5 V).
3. PIN Description
PIN No.
Symbol
I/O
Description
1
n.c.
not connected
2
CPOUT
O
charge pump output of synthesizer PLL
3
VCOTANK1
O
voltage controlled oscillator tuned circuit output 1
4
VCOTANK2
O
voltage controlled oscillator tuned circuit output 2
5
VCC(VCO)
P
voltage controlled oscillator supply voltage
6
DGND
digital ground
7
VCCD
P
digital supply voltage
8
DATA
I/O
bus data line input/output
9
CLOCK
I
bus clock line input
10
n.c.
not connected
11
WRITE/READ
I
write/read control input for the 3-wire bus
12
BUSMODE
I
bus mode select input
13
BUSENABLE
I
bus enable input
14
SWPORT1
software programmable port 1
15
SWPORT2
software programmable port 2
16
XTAL1
I
crystal oscillator input 1