SDA4335 Infineon Technologies Corporation, SDA4335 Datasheet - Page 5

• Manufacturer Part Number: SDA4335
• Description: PLL Frequency Synthesizer, if Counter, 7 Bit ADC, 7 & 4 Bit DAC
• Manufacturer: Infineon Technologies Corporation

SDA 4335
The SDA 4335 is a Car-Radio PLL frequency synthesizer implemented in Infineon BiCMOS
technology B6CA. The device contains the PLL, 2 pin 61.5MHz Oscillator internally coupled to
PLL, an IF Counter for AM & FM an 7 bit ADC, an 7 & 4 bit DAC and additonal 2 ports for input-
or output-functions. Primary applications are in Car-Radio systems.
• Operation range 8 to 11 V
• I
• Bus interface with low threshold voltage Schmitt-Trigger inputs for interfacing 3V or 5V microprocessors
• 16 bit fully programmable R- and N-Counter
• Resolution e.g.100kHz, 50kHz, 25kHz, 12.5kHz, 10kHz, 6.25kHz, 6kHz, 5kHz, 3kHz, 1kHz.
• 4 programmable phase detector currents : 0.5mA, 1mA, 2mA, 4mA.
• Rail to rail Loop-amplifier
• 2 Chargepump-outputs for different timeconstants
• High running 2 pin crystal oscillator f
• Switchable output for 10.25MHz (500mVss @ load-capacitance 10pF)
• Multiplexed 7 bit ADC for ADC_IN1 and ADC_IN2. Result read out via bus (2 bytes).
• 7 bit DAC-output, range 0...VREFD5V
• 4 bit DAC-output, range 0...VREFD5V
• 3 free programmable output PORTS
• PORT 1: free programmable output
• PORT 2: for AM seek mode or input port for stereo-indicator
• PORT 3: IFC_SD for IF counter resolution or input port for station-detect
• Search tuning stop with IF counter measurement, result read out via bus or port.
Semiconductor Group
gatetime
center-frequency (standard)
window-resolution (standard)
2
C Bus and 3Wire Bus operation selectable
(double)
(double)
Q
= 61.5MHz , adjustable via Bus
FM-mode
320us...40.96ms
10.40 MHz ... 11.19375 MHz or
20.80 MHz ... 22.3875 MHz
+/- 6.25 kHz...100 kHz
+/- 12.5 kHz...200 kHz
5
P-TSSOP-28
AM-mode
440kHz...471kHz
+/- 250Hz...4kHz
1ms...64ms
17.2.99