Introduces the features and characteristics of PHILIPS SAA7128AH/SAA7129AH digital video encoder products
The Philips SAA7128AH and SAA7129AH are monolithic CMOS integrated circuits designed as digital video encoders. These devices encode digital Cg-Y-Cb video data into NTSC, PAL, or SECAM CVBS or S-video signals while simultaneously providing RGB or bypassed but interpolated Cr-Y-Cb signals via three additional DACs.
The chips accept two ITU-R BT.656 compatible Cb-Y-Cr data streams with 720 active pixels per line through a 54 MHz double-speed multiplexed D1 interface. They include an on-chip crystal oscillator and feature various encoding capabilities such as closed captioning, World Standard Teletext (WST), North-American Broadcast Text System (NABTS), and Copy Generation Management System (CGMS). The devices are available in a QFP44 package.
| Supply Voltage (Analog) | 3.15 - 3.45 V |
|---|---|
| Supply Voltage (Digital) | 3.0 - 3.6 V |
| Analog Supply Current | 180 mA (Typ) |
| Digital Supply Current | 40 mA (Typ) |
| Ambient Temperature | 0 to 70 °C |
| Package Type | QFP44 plastic quad flat package |
The system pixel frequency is 13.5 MHz.
No, the device includes an on-chip crystal oscillator (8th-harmonic or fundamental crystal).