(China (Mainland))
Product Summary
The TDA6405TS/C1 is a programmable 2-band mixer/oscillator-PLL synthesizer intended for VHF/UHF and hyperband tuners. The TDA6405TS/C1 includes two double balanced mixers and two oscillators for the VHF and UHF band, an IF amplifier and a PLL synthesizer. With proper oscillator application and by using a switchable inductor to split the VHF band into two sub-bands (the full VHF/UHF and hyperband) the TV bands can be covered. Application is hyperband tuners for Europe using a 2-band mixer/oscillator in a switched concept.
Parametrics
TDA6405TS/C1 absolute maximum ratings: (1)VCC supply voltage: -0.3 to +6 V; (2)VO(n)output voltage on pins PVHFL, PVHFH and PUHF: -0.3 to +6 V; (3)IO(n)output current on pins PVHFL, PVHFH and PUHF: +30 mA; (4)VO(CP)charge pump output voltage: -0.3 to +6 V; (5)VO(VT)tuning output voltage: -0.3 to +35 V; (6)VI/O(ADC)ADC input/output voltage: -0.3 to +6 V; (7)VI(SCL)serial clock input voltage: -0.3 to +6 V; (8)VI/O(SDA)serial data input/output voltage: -0.3 to +6 V; (9)IO(SDA)data output current: +10 mA; (10)VI(AS)address selection input voltage: -0.3 to +6 V; (11)VI(XTAL)crystal oscillator input voltage: -0.3 to +6 V; (12)IO(n)output current of each pin to ground: for TDA6404, pins 1 to 6 and 17 to 28: 10 mA; (13)for TDA6405 and TDA6405A, pins 1 to 12 and 23 to 28: 10 mA; (14)tsc(max)maximum short-circuit time (all pins to VCC and all pins to GND, RFGND): 10 s; (15)Tstg IC storage temperature: -40 to +150 °C; (16)Tamb operating ambient temperature: -20 to +85 °C; (17)Tj junction temperature: 150 °C.
Features
TDA6405TS/C1 features: (1)Single chip 5 V mixer/oscillator-PLL synthesizer for hyperband tuners; (2)I2C-bus protocol; (3)3 PNP band switch buffers (25 mA); (4)33 V tuning voltage output; (5)In-lock detector; (6)5-level Analog-to-Digital Converter (ADC); (7)15-bit programmable divider; (8)Programmable reference divider ratio (512, 640 or 1024); (9)Programmable charge pump current; (10)Balanced mixer with a common emitter input for VHF (single input); (11)Balanced mixer with a common base input for UHF (double input); (12)4-pin common emitter oscillator for VHF; (13)4-pin common emitter oscillator for UHF.
Diagrams
