
The status of this feature can be read in the ACPS flag during a READ operation on the IC-bus .
IC-bus mode (SW = GND)
Five serial bytes (including address byte) are required to address the device, select the VCO frequency, program the four ports, set the
charge pump current and set the reference divider ratio. The device has four independent IC-bus addresses which can be selected by
applying a specific voltage on input CE .
3-wire bus mode (SW = OPEN or VCC)
Data is transmitted to the devices during a HIGH-level on input CE (enable line). The device is compatible with 18-bit and 19-bit data
formats. The first four bits are used to program the PNP ports and the remaining bits control the programmable divider. A 27-bit data format
may also be used to set the charge pump current, the reference divider ratio and for test purposes
It is not allowed to address the devices with words whose length is different from 18, 19 or 27 bits.
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Single-chip 5 V mixer/oscillator and synthesizer for cable TV and VCR tuners
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Synthesizer function compatible with existing TSA5526
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Universal bus protocol (IC-bus or 3-wire bus)
- Bus protocol for 18 or 19-bit transmission (3-wire bus)
- Extra protocol for 27-bit transmission (test modes and features for 3-wire bus)
- Address + 4 data bytes transmission (IC-bus ‘write’ mode)
- Address + 1 status byte (IC-bus ‘read’ mode)
- 4 independent IC-bus addresses.
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1 PNP buffer for UHF band selection (25 mA)
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3 PNP buffers for general purpose, e.g. 2 VHF sub-bands, FM sound trap (25 mA)
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33 V tuning voltage output
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In-lock detector
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5-step A/D converter (3 bits in IC-bus mode)
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15-bit programmable divider
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Programmable reference divider ratio (512, 640 or 1024)
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Programmable charge pump current (60 or 280 A)
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Programmable automatic charge pump current switch
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Varicap drive disable
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Mixer/oscillator function compatible with existing TDA5732
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Balanced mixer with a common emitter input for VHF (single input)
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Balanced mixer with a common base input for UHF (balanced input)
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2-pin common emitter oscillator for VHF
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4-pin common emitter oscillator for UHF
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IF preamplifier with asymmetrical 75
output impedance to drive a low-ohmic impedance (75 )
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Low power
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Low radiation
Features