OM8378PS/N3/2 Datasheet – TV Signal Processor
TV signal processor- Closed Caption decoder
Package DIP 64 Pin type
OM8378PS/N3/2 overview
The OM8378PS/N3/2 is a TV signal processor- Closed Caption decoder made by Philips Electronics - NXP, supplied in a DIP 64 Pin type package. The absolute maximum ratings table on this page lists the 12 limits from the manufacturer's datasheet that must not be exceeded. This page brings together the OM8378PS/N3/2 pinout and maximum ratings, with the full datasheet PDF to preview below or download.
The OM8373 and OM8378 combine the functions of a video processor together with a m-Controller and US Closed Caption decoder. The ICs are intended to be used in economy television receivers with 110° picture tubes.
The ICs have supply voltages of 8 V and 3.3 V and they are mounted in a SDIP-64 envelope.
Datasheet
om8373-datasheet.pdf
OM8378PS/N3/2 features
- A linear RGB/YUV/YP P input with fast blanking for
- Vision IF circuit suitable for negative modulation with signals are internally supplied from the µ-Controller.
- RGB control circuit with ‘Continuous Cathode
- Internal(switchable) time-constantfortheIF-AGCcircuit Calibration’, white point and black level off-set
- The mono intercarrier sound circuit has a selective adjustment so that the colour temperature of the dark
- 2 levels of contrast reduction of main picture possible
- Source selection between the ‘internal’ CVBS and an • OSD/Text gain reduction control
- Adjustable ‘wide blanking’ of the RGB outputs
- 1 external audio input. • Horizontal synchronization with two control loops and
- Integrated chrominance trap circuit alignment-free horizontal oscillator
- Integrated luminance delay line with adjustable delay • Vertical count-down circuit
- Vertical driver optimized for DC-coupled vertical output
- Picture improvement features with peaking (with stages
- Horizontal and vertical geometry processing
- Horizontal and vertical zoom function for 16 : 9
OM8378PS/N3/2 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | P1.3/T1 | port 1.3 or Counter/Timer 1 input |
| 2 | P1.6/SCL | port 1.6 or I2C-bus clock line |
| 3 | P1.7/SDA | port 1.7 or I2C-bus data line |
| 4 | P2.0/TPWM | port 2.0 or Tuning PWM output |
| 5 | P3.0/ADC0/PWM0 | port 3.0 or ADC0 input or PWM0 output |
| 6 | P3.1/ADC1/PWM1 | port 3.1 or ADC1 input or PWM1 output |
| 7 | P3.2/ADC2/PWM2 | port 3.2 or ADC2 input or PWM2 output |
| 8 | P3.3/ADC3/PWM3 | port 3.3 or ADC3 input or PWM3 output |
| 9 | VSSC/P | digital ground for m-Controller core and periphery |
| 10 | P0.5 | port 0.5 (8 mA current sinking capability for direct drive of LEDs) |
| 11 | P0.6 | port 0.6 (8 mA current sinking capability for direct drive of LEDs) |
| 12 | VSSA | digital ground of TV-processor |
| 13 | DEC | decoupling |
| 14 | VP2 | 2nd supply voltage TV-processor (+8V) |
| 15 | DECDIG | supply voltage decoupling of digital circuit of TV-processor |
| 16 | PH2LF | phase-2 filter |
| 17 | PH1LF | phase-1 filter |
| 18 | GND3 | ground 3 for TV-processor |
| 19 | DECBG | bandgap decoupling |
| 20 | EWD | E-W drive output |
| 21 | VDRB | vertical drive B output |
| 22 | VDRA | vertical drive A output |
| 23 | IFIN1 | IF input 1 |
| 24 | IFIN2 | IF input 2 |
Show all 38 pins
| Pin | Name | Description |
|---|---|---|
| 25 | IREF | reference current input |
| 26 | VSC | vertical sawtooth capacitor |
| 27 | AGCOUT | tuner AGC output |
| 28 | AUDEEM | audio deemphasis |
| 29 | DECSDEM | decoupling sound demodulator |
| 30 | GND2 | ground 2 for TV processor |
| 31 | SNDPLL | narrow band PLL filter |
| 32 | AVL/REFO/SNDIF (1) | Automatic Volume Levelling / subcarrier reference output / sound IF input |
| 33 | HOUT | horizontal output |
| 34 | FBISO | flyback input/sandcastle output |
| 35 | AUDEXT | external audio input |
| 36 | EHTO | EHT/overvoltage protection input |
| 37 | PLLIF | IF-PLL loop filter |
| 38 | IFVO/SVO | IF video output / selected video output |
Absolute maximum ratings
| Parameter | Symbol | Value | Unit | Conditions |
|---|---|---|---|---|
| supply voltage | VP | Max. 9 | V | |
| supply voltage (all digital supplies) | VDD | Min. -0.5 / Max. 5.0 | V | |
| digital inputs | VI | Min. -0.5 / Max. VDD+ 0.5 | V | note 1 |
| digital outputs | VO | Min. -0.5 / Max. VDD+ 0.5 | V | note 1 |
| output current (each output) | IO | Max. ±10 | mA | |
| DC input or output diode current | IIOK | Max. ±20 | mA | |
| storage temperature | Tstg | Min. -25 / Max. +150 | °C | |
| operating ambient temperature | Tamb | Min. 0 / Max. 70 | °C | |
| soldering temperature | Tsol | Max. 260 | °C | for 5 s |
| operating junction temperature | Tj | Max. 150 | °C | |
| electrostatic handling | Ves | Min. -2000 / Max. +2000 | V | HBM; all pins; notes 2 and 3 |
| -300 | MM; all pins; notes 2 and 4 | Min. V | +300 |
OM8378PS/N3/2 applications
- CRT Television Control
- Analog Signal Processing
- TV Tuner Circuitry
- Consumer Electronics
- Television Receivers
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