PC-TFT-35PA Interface Board Features The PC-TFT-35PA interface board is designed to work with the AND-TFT-35PA color TFT 3.5” display and together is suitable for security, video games, door phone, video phone, portable TV, and instrument display applications. • Used for TFT-LCD Display: 3.5” AND-TFT-35PA • DC/DC DC/AC Video Decoder All In One • NTSC/PAL Video input Switch • Up/Down Display Reverse • Left/Right Display Reverse • Single Operation Voltage +12V • RoHS Compliant Mechanical Characteristics Parameter Screen Size Display Format Active Area Dot Pitch Pixel Configuration Weight Outline Dimension Contrast Ratio: Absolute Maximum Rating Color Specification 3.5(diagonal) 160x234 71.6 x 52.7 0.149 (W)x0.225 (H) Delta 58±3 84(W) x 69(H) x 7(D) 350:1 (V) +15º C/ -35º C (H) ± 50º C Full Color Brightness 250 View Angle Unit inch dot mm mm – g mm ratio Parameter Input Voltage Sym Vin Min Max Unit +10 +14 V Video Input Signal Video in 0.5 2.0 Vp-p Digital Input Signal Operating Temp. Relative Humidity Storage Temp Relative Humidity TTL – – – – +0.3 -10 5 -25 0 +5.3 60 90 80 90 V ºC %RH ºC %RH deg. – cd/m2 Electrical Characteristics Symbol I/O Min Typ Max Unit Input Voltage Parameter Vin I +10 +12 +14 V Total Current Iin I – TBD – mA Power Consumption Video Input Signal Output Voltage Brightness Adjust Contrast Adjust Color Adjust Tint Adjust Video Auto Detect Screen Reverse Screen Reverse Remark – I – TBD – W @+12V Video in I – 1.0 – Vp-p @75Ω +5V Bright Contrast Color Tint (NTSC only) NTSC/PAL Left/Right Up/Down O I I I I I I I – +1.60 +1.60 +0.60 +1.40 – – – +5V +2.20 +1.80 +1.40 +1.90 TTL TTL TTL – +2.50 +2.50 +1.80 +2.40 – – – V V V V V V V V Product specifications contained herein may be changed without prior notice. It is therefore advisable to contact Purdy Electronics before proceeding with the design of equipment incorporating this product. 1/28/08 Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected] www.purdyelectronics.com 1 PC-TFT-35PA Block Diagram Outline Dimensions (General Tolerance ±0.50mm) 2 Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected] www.purdyelectronics.com 1/28/08 PC-TFT-35PA Pin Assignment of Signal Input (pitch 1.25mm, side entry type) Pin No Symbol I/O Description 1 Vin I +12V Voltage DC Input Remark 2 GND I Power Ground 3 GND I Power Ground 4 GND I Signal Ground 5 Video in I Video Input 6 +5V O +5V Voltage DC Output 7 Bright I Brightness Control 8 Contrast I Contrast Control 9 Color I Color Control 10 Tint I Tint Control Note 2 11 NTSC / PAL O Auto detect system output Note 3 12 Left / Right I Left / Right Reverse Note 4 13 Up / Down I Up / Down Reverse Note 4 14 GND I Power Ground Note 1 Note1 : The +5V power supply external control circuit.(Max. output is 5mA) Note2 : The TINT is only operating in NTSC system. Note3 : The output High level for NTSC mode and Low level for PAL mode. Note4 : Default is reversed scanning(High) and Low is for normal scanning. Please do force this pin to ground for normal scan. Output For LCD Panel Backlight Pin No Symbol I/O Description Remark 1 HV+ O High Voltage Terminal for Backlight Connect to Pink Wire 2 HV- – Return Terminal for Backlight Connect to White Wire Panel Backlight Data Parameter Symbol Min Typ Max Unit Remark Lamp Voltage VL – 265 – Vrms IL = 3mA Lamp Current IL – 3 – mArms Brightness – 200 250 – cd/m2 Symbol Min Typ Max Unit Remark Lamp Voltage VL – TBD – Vrms IL = mA Lamp Current IL – TBD – mArms Inverter Data (Ta=25ºC @+12V) Parameter 1/28/08 Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected] www.purdyelectronics.com 3