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PDF 32WH37G Data sheet ( Hoja de datos )
| Número de pieza | 32WH37G | |
| Descripción | COLOUR TELEVISION SERVICE MANUAL | |
| Fabricantes | TOSHIBA | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 32WH37G (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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TOSHIBA
050-200267
SERVICE MANUAL
COLOURTELEVISION
32WH37G
AK41 Chassis
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PRINTED IN UK. 2003 C
datasheet pdf - http://www.DataSheet4U.net/
1 page  
Features:
n 5V supply voltage; low power consumption
n Active carrier generation by FPLL principle (frequency-phase-locked-loop) for true synchronous demodulation
n Very linear video demodulation, good pulse response and excellent intermodulation figures
n VCO circuit is operating on picture carrier frequency, the VCO frequency is switchable for the L mode
n Alignment-free AFC without external reference circuit, polarity of the AFC curve is switchable
n VIF-AGC for negative modulated signals (peak sync detection) and for positive modulation
(peak white/black level detector).
n Tuner AGC with adjustable take over point
n Alignment-free quasi parallel sound (QPS) mixer for FM/NICAM sound IF signals
n Intercarrier output signal is gain controlled (necessary for digital sound processing)
n Complete alignment-free AM demodulator with gain controlled AF output
n Separate SIF-AGC with average detection
n Two independent SIF inputs
n Parallel operation of the AM demodulator and QPS mixer (for NICAM-L stereo sound)
n Package and relevant pinning is compatible with the single standard version TDA 4472; simplifies the design of
an universal IF module
Pinning:
1. Input sensitivity, RMS value
2. Input sensitivity, RMS value
3. SIF Input selector switch
4. Ground
5. IF gain control range
6. Input sensitivity, RMS value
7. Input sensitivity, RMS value
8. IF gain control range
9. Ground
10. Available tuner-AGC current
11. Available tuner-AGC current
12. Video output
13. Standard switch
14. L switch
15. IF gain control range
16. Ground
17. Internal reference voltage
18. FPLL and VCO
19. AFC switch
20. FPLL and VCO
21. FPLL and VCO
22. AFC output
23. DC supplay
24. DC output voltage
25. AF output-AM
26. FPLL and VCO
27. Input sensitivity, RMS value
28. Input sensitivity, RMS value
: 80mVrms
: 80mVrms
: 2.0 V
: 65dB
: 80mVrms
: 80mVrms
: 65dB
: 2mA
: Min : 0.3V Max : 13.5V
: Min : 1.8V Max : 2.2V
: Min : 0V Max : 0.8V
: Min : 0V Max : 3.0V
: 65dB
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: Min : 1mA Max : 4mA
: Min : 0V Max : 0.8V
: Min : 1mA Max : 4mA
: Min : 1mA Max : 4mA
: 0.7 mA/kHz
: Min : 4.5V Max : 9.0V
: 2V
: 2.2V
: Min : 1mA Max : 4mA
: 80mVrms
: 80mVrms
TUNER
The hardware and software of the TV is suitable for tuners, supplied by different companies, which are selected from the
Service Menu. These tuners can be combined VHF, UHF tuners suitable for CCIR systems B/G, H, L, L´, I/I´, and D/K.
The tuning is available through the digitally controlled I²C bus (PLL). Below you will find info on one of the Tuners in use.
General description of UV1316:
The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of applications. It is a
combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L, I and I. The low IF output impedance has been designed
for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient.
Features of UV1316:
n Member of the UV1300 family small sized UHF/VHF tuners
n Systems CCIR: B/G, H, L, L, I and I; OIRT: D/K
n Digitally controlled (PLL) tuning via I2C-bus
n Off-air channels, S-cable channels and Hyperband
n World standardised mechanical dimensions and world standard pinning
n Compact size
n Complies to CENELEC EN55020 and EN55013
4
datasheet pdf - http://www.DataSheet4U.net/
5 Page 
- Two 16 bit timers, Watchdog timer
- PWM unit (2 channels 14 bit, 6 channels 8 bit)
- ADC (4 channels, 8 bit), UART
- I2 C interface
n Memory
- Non-multiplexed 8-bit data and 16 (up to 20) bit address bus
- Memory banking up to 1Mbyte
- Eight 16 bit data pointer registers (DPTR)
- 256 bytes on-chip internal RAM
- 128 bytes extended stack memory
- 16 Kbytes Extended RAM for Display Memory
n Display
- ROM character set supports all East/West European Languages
- Parallel display attributes
- Single/Double Width/Height of characters
- Variable flash rate
- Programmable screen size
- Up to 16 colours per DRCS character
- Shadowing
- Support of Progressive Scan and 100Hz
- Contrast Reduction
n Ports
- One 8 bit I/O port with open drain output and optional I2C Bus emulation support (Port 1)
- Two 8 bit multifunction I/O ports (Port1, Port3)
- One 4 bit port operating as digital or analog inputs for ADC (Port 2)
- One 2 bit I/O port with secondary functions (P4.2, 4.3, 4.7)
- One 4 bit I/O port with secondary functions (P4.0, 4.1, 4.4)
SERIAL ACCESS 32K EEPROM (24LC32-W)
It is the 32Kbit electrically erasable programmable memory. The memory is compatible with the I2C standard,
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two wire serial interface, which uses a bi-directional data bus and serial clock.
Features:
n Single supply with 3.3V (operation down to 2.5V)
n Compatible with I2C extended addressing
n 2-wire I2C serial interface supports 100kHz protocol
n Self-timed ERASE and WRITE cycles
n Power on/off data protection circuitry
n Hardware write protect
n 1,000,000 Erase/Write cycles guaranteed
n 32-byte page or byte writes modes available
n Schmidt trigger filtered inputs for noise suppression
n Output slope control to eliminate ground bounce
n 2 ms typical write cycle time, byte or page
n Electrostatic discharge protection > 4000V
n Data retention > 200 years
n 8-pin PDIP and SOIC packages
Pinning:
1. E0
2. E1
3. E2
4. Vss
5. SDA
6. SCL
7. WC
8. Vcc
User Configurable Chip Select
User Configurable Chip Select
User Configurable Chip Select
Ground
Serial Address/Data I/O
Serial Clock
Write Protect Input
+2.5V to 6.0V Power Supply
10
datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
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| PDF Descargar | [ Datasheet 32WH37G.PDF ] | |
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