A/D, D/C Converters for Image Signal Processing MN657011H Low Power 8-Bit, 3-Channel CMOS D/A Converter for Image Processing Overview Pin Assignment 36 35 34 33 32 31 30 29 28 27 26 25 N.C. N.C. N.C. N.C. AVSS AVSS N.C. IOV N.C. IOU N.C. IOY The MN657011H is an 8-bit, 3-channel CMOS digitalto-analog converter with a maximum conversion rate of 20 MSPS. It is a 3.5 volt version of the MN65701FHP. Digital video equipment 37 38 39 40 41 42 43 44 45 46 47 48 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 Applications Digital television N.C. N.C. N.C. NTCS UVSEL DVSS N.C. DVDD DC8 DC7 DC6 DC5 VIB COMP VREF IREF AVDD AVDD N.C. N.C. DY1 DY2 DY3 DY4 DC4 DC3 DC2 DC1 CLK DVSS N.C. DVDD DY8 DY7 DY6 DY5 Features Maximum conversion rate: 20 MSPS (min.) Linearity error: ±0.2 LSB (typ.) Differential linearity error: ±0.2 LSB (typ.) Power supply voltage: 3.5±0.1 V Full scale current: 4 mA (typ.) Power consumption: 84 mW (typ.) (fCLK=15 MHz) Digital image processing equipment (TOP VIEW) QFH048-P-0707 1 MN657011H A/D, D/C Converters for Image Signal Processing Block Diagram CLK 23 COMP – + VIB CCOMP 24 21 IREF 22 VREF 43 30 28 26 16 7 NTSC 17 N.C. RREF Current Source + – 40 5 Latch Latch Decoder Latch Current Cell Latch Decoder Latch Current Cell Latch Decoder Latch Current Cell Selector Latch 42 DVSS 6 DVSS 44 DVDD 8 DVDD AVSS 32 31 AVSS 20 41 AVDD 2 Latch Selector 33 34 35 36 37 38 39 19 UVSEL 4 3 2 1 48 47 46 45 AVDD N.C. N.C. N.C. N.C. N.C. N.C. N.C. Latch (MSB)DC1 DC2 DC3 DC4 DC5 DC6 DC7 (LSB)DC8 16 15 14 13 12 11 10 9 Latch DAC (MSB)DY1 DY2 DY3 DY4 DY5 DY6 DY7 (LSB)DY8 ROUT 25 IOY 27 IOU 29 IOV ROUT ROUT A/D, D/C Converters for Image Signal Processing MN657011H Pin Descriptions Pin No. 1 Symbol DC4 Function Description C (chroma) digital input 2 DC3 C (chroma) digital input 3 DC2 C (chroma) digital input 4 DC1 C (chroma) digital input (MSB) 5 CLK Sampling clock 6 DVSS Ground for digital circuits 7 N.C. No connection 8 DVDD Power supply for digital circuits 9 DY8 Y (luminance) digital input (LSB) 10 DY7 Y (luminance) digital input 11 DY6 Y (luminance) digital input 12 DY5 Y (luminance) digital input 13 DY4 Y (luminance) digital input 14 DY3 Y (luminance) digital input 15 DY2 Y (luminance) digital input 16 DY1 Y (luminance) digital input (MSB) 17 N.C. No connection 18 N.C. No connection 19 AVDD Power supply for analog circuits 20 AVDD Power supply for analog circuits 21 IREF Full scale adjustment resistor 22 VREF 23 COMP Reference voltage input 24 VIB Capacitor connection 25 IOY Y signal analog current output 26 N.C. No connection 27 IOU U signal analog current output 28 N.C. No connection 29 IOV V signal analog current output Phase compensation 30 N.C. No connection 31 AVSS Ground for analog circuits 32 AVSS Ground for analog circuits 33 N.C. No connection 34 N.C. No connection 35 N.C. No connection 36 N.C. No connection 37 N.C. No connection 38 N.C. No connection 39 N.C. No connection 40 NTCS 41 UVSEL 42 DVSS Format selection (two's complement/binary) for C (chroma) signal U/V signal discrimination for C (chroma) signal Ground for digital circuits 3 MN657011H A/D, D/C Converters for Image Signal Processing Pin Descriptions (continued) Pin No. 43 Symbol N.C. Function Description No connection 44 DVDD Power supply for digital circuits 45 DC8 C (chroma) digital input (LSB) 46 DC7 C (chroma) digital input 47 DC6 C (chroma) digital input 48 DC5 C (chroma) digital input Absolute Maximum Ratings Ta=25˚C Parameter Power supply voltage for digital circuits Symbol DVDD Rating – 0.3 to +7.0 Unit V Power supply voltage for analog circuits AVDD – 0.3 to +7.0 V VI DVSS – 0.3 to DVDD +0.3 V Output voltage VO AVSS – 0.3 to AVDD +0.3 V Operating ambient temperature Topr –20 to +70 ˚C Storage temperature Tstg –55 to +125 ˚C Input voltage Recommended Operating Conditions Parameter Power supply voltage VDD=AVDD=DVDD=3.5V, VSS=AVSS=DVSS=0V, Ta=25˚C Symbol VDD min 3.4 Reference voltage VREF 1.5 Reference resistance RREF External compensation capacitor CCOMP Output load resistance ROUT typ 3.5 max 3.6 1.9 3.5 Unit V V Ω 820 0.33 1.0 µF 3.3 Ω 200 Digital input "H" level VIH VDD × 0.5 VDD V voltage "L" level VIL VSS VDD × 0.16 V Clock "H" level pulse width tWH 15 ns "L" level pulse width tWL 15 ns Electrical Characteristics Parameter Power supply voltage DVDD=AVDD=3.5V, DVSS=AVSS=0V, Ta=25˚C Symbol Conditions IDD VDD=3.5V, fCLK=15MHz min typ 24 ROUT=200Ω, Output amplitude = 0.8V max Unit 40 mA T=25˚C Resolution 8 bit Linearity error EL VDD=3.5V, ROUT=200Ω ±0.2 ±0.5 LSB Differential linearity error ED RREF=820Ω ±0.2 ±0.5 LSB Full scale current IFS VREF=1.9V Setup time tS Hold time tH Settling time tST Maximum conversion speed Analog output delay time 4 RES FC(max.) td 4 mA 10 ns 10 VDD=3.5V, ROUT=200Ω RREF=820Ω VREF=1.9V ns 30 20 50 ns 33 MSPS 10 ns A/D, D/C Converters for Image Signal Processing MN657011H Timing Chart tWH tWL VDD × 0.5 CLK VDD × 0.16 tS DY1 to DY8 Y-1 Y0 tS DC1 to DC8 V-2 tH Y1 Y2 Y3 Y4 Y5 V0 U2 V2 U4 V4 tH U0 UVSEL IOY Y-2 Y-1 Y0 Y1 Y2 IOU U-2 U-2 U0 U0 U2 IOV V-2 V-2 V0 V0 V2 Three clock cycles td tST td: Analog output delay time tST: Settling time 5 MN657011H A/D, D/C Converters for Image Signal Processing Package Dimensions (Unit:mm) QFH048-P-0707 9.0±0.2 7.0±0.2 36 25 24 9.0±0.2 7.0±0.2 (0.75) 37 13 48 1 0.5 (0.75) 12 0.2±0.1 0.1 SEATING PLANE 6 0.1±0.1 0.15 +0.10 -0.05 2.9 max. 2.5±0.2 (1.0) 0.5±0.2 0 to 10°