CS4954 CS4955 NTSC/PAL Digital Video Encoder Features Description The CS4954/5 provides full conversion from digital video z Six DACs providing simultaneous formats YCbCr or YUV to NTSC and PAL Composite, composite,S-video, and RGB or Component Y/C (S-video) and RGB, or YUV analog video. Input for- YUV outputs mats can be 27 MHz 8-bit YUV, 8-bit YCbCr, or ITU z Programmable DAC output currents for low R.BT656 with support for EAV/SAV codes. Video output impedance (37.5 ) and high impedance can be formatted to be compatible with NTSC-M, NTSC- (150 ) loads J, PAL-B,D,G,H,I,M,N, and Combination N systems. Closed Caption is supported in NTSC. Teletext is sup- z Multi-standard support for NTSC-M, NTSC- ported for NTSC and PAL. JAPAN, PAL (B, D, G, H, I, M, N, Combination N) Six 10-bit DACs provide two channels for an S-Video output port, one or two composite video outputs, and z ITU R.BT656 input mode supporting three RGB or YUV outputs. Two-times oversampling re- EAV/SAV codes and CCIR601 Master/Slave duces the output filter requirements and guarantees no input modes DAC-related modulation components within the speci- z Programmable HSYNC and VSYNC timing fied bandwidth of any of the supported video standards. z Multistandard Teletext (Europe, NABTS, Parallel or high-speed IC compatible control interfaces are WST) support provided for flexibility in system design. The parallel interface z VBI encoding support doubles as a general purpose I/O port when the CS4954/5 is in IC mode to help conserve valuable board area. z Wide-Screen Signaling (WSS) support, EIA-J CPX1204 The CS4954 and CS4955 are available in a 48-pin TQFP z NTSC closed caption encoder with interrupt and operate in -40 to +85C ambient temperature. The CDB4954/55 Customer Demonstration board is also z CS4955 supports Macrovision copy available. Please refer to Ordering Information on protection Version 7 page 2. z Host interface configurable VAA for parallel or IC compatible CLK Output LPF 10-Bit operation SCL IC Interface C Interpolate DAC SDA z On-chip voltage reference 8 Control 10-Bit Chroma Amplifier PDAT 7:0 CVBS Registers DAC Host generator RD Parallel Chroma Modulate WR 10-Bit Interface z +3.3 V or +5 V operation, Y DAC PADR Burst Insert CMOS, low-power modes, XTAL IN 10-Bit Color Sub-carrier Synthesizer R XTAL OUT DAC three-state DACs Chroma Interpolate 10-Bit YCbCr to RBG G LPF U,V TTXDAT Teletext DAC Color Space Encoder Converter TTXRQ 10-Bit B DAC 8 Y VD 7:0 Video Formatter Luma Interpolate HSYNC Voltage VREF VSYNC Reference Video Timing Luma Amplifier FIELD Generator Y Current INT Y ISET Reference Sync Insert RESET RGB RGB DGND TEST Copyright Cirrus Logic, Inc. 2006 SEPTEMBER 06 (All Rights Reserved) DS278F6 www.cirrus.com 1CS4954 CS4955 ORDERING INFORMATION Product Description Package Pb-Free Grade Temp Range Container Order CS4954 CS4954-CQZ NTSC/PAL Digital 48-TQFP Yes Commercial -40 to +85C Rail Video Encoder CS4955 CS4955-CQZ CDB4954/55 CS4954/55 Evaluation Board No - - - CDB4954A/55A 2 DS278F6