ICs for TV AN8146FBQ 10-Bit 3-channel D/A Converter IC ■ Overview Unit : mm 16.2±0.3 14.0±0.30 48 33 49 32 64 17 16 + 0.10 0.35 – 0.05 SEATING PLANE 0.9±0.1 1 (10) 1.95±0.2 conversion : 50MSPS power consumption : 450mW ● 3 channels of I/O ● Input level : TTL level ● Single power supply : 5V ● Reference voltage source built-in ● Low 0.1±0.1 ● High-speed 0.9±0.1 14.0±0.30 ■ Features 17.2±0.40 (10) The AN8146FBQ is a 10-bit D/A converter IC for TV image processing. It is a Bi-CMOS IC featuring low power consumption. It includes 3 channels of I/O. It is suitable for high-definition TV and computer monitor. 64-Pin QFS Package (QFS064-P-1414B) ■ Pin Descriptions Pin No. Pin name Pin No. Pin name 17 Digital input 1 bit (MSB) B 1 2 Analog GND Digital input 1 bit (MSB) A 18 Digital input 2 bit 3 Digital input 2 bit A 4 Digital input 3 bit A 19 20 Digital input 3 bit Analog GND 5 Digital input 4 bit A Analog GND 6 Digital input 5 bit A 21 22 Digital input 4 bit A Pin No. Pin name Pin No. Pin name 49 Reference voltage output B 33 Analog GND 34 Digital input 1 bit (MSB) C B 35 Digital input 2 bit C 36 Digital input 3 bit C 51 Analog GND 52 Analog GND 37 Digital input 4 bit C B 38 Digital input 5 bit C 53 To a compensation capacitor 54 Stabilizing C 55 Reference resistance 50 Reference voltage input 7 Digital input 6 bit 23 Digital input 5 bit B 39 Digital input 6 bit 8 Analog GND 24 Digital input 6 bit B 40 Analog GND 56 Analog GND 9 Analog GND 25 Analog GND 41 Analog GND 57 Analog GND 10 Analog GND 26 Analog GND 42 Analog GND 58 Analog GND 11 Digital input 7 bit A 27 Digital input 7 bit B 43 Digital input 7 bit C 59 Analog output C 12 Digital input 8 bit A 28 Digital input 8 bit B 44 Digital input 8 bit C 60 Analog power supply 13 Digital input 9 bit A 29 Digital input 9 bit B 45 Digital input 9 bit C 61 Analog output B 14 Digital input 10 bit (LSB) A 30 Digital input 10 bit B 46 Digital input 10 bit C 62 Analog power supply 15 Clock input 31 Clock input B 47 Clock input C 63 Analog output B 16 Digital GND 32 Digital power supply A 48 Analog GND 64 Analog GND ICs for TV AN8146FBQ ■ Block Diagram D10A D9A D8A D7A D6A D5A D4A D3A D2A D1A 14 13 12 11 7 6 5 4 3 2 COMP 53 + – 50 REFI 55 REFR 49 REFO Current Source CLKA 15 Refference Voltage Regulator D1B 17 D2B 18 D3B 19 D4B 22 D5B 23 D6B 24 D7B 27 D8B 28 D9B 29 D10B 30 CLKB 10-bit D/A A 63 OUTA 10-bit D/A B 61 OUTB 10-bit D/A C 59 OUTC 54 VIB 31 34 35 36 37 38 39 43 44 45 46 D1C D2C D3C D4C D5C D6C D7C D8C D9C D10C 47 CLKC ICs for TV AN8146FBQ ■ Absolute Maximum Ratings Symbol Rating Supply voltage Parameter VCC – 0.3 to + 7.0 Supply current ICC 210 mA mW Power dissipation Note 2) Operating ambient temperature Storage temperature Note 1) Note 1) Unit V PD 585 Topr – 20 to + 70 ˚C Tstg – 55 to + 125 ˚C Note 1) Ta =25˚C except operating ambient temperature and storage temperature. Note 2) Allowable power dissipation of the package at Ta =70˚C. ■ Recommended Operating Range (Ta = 25˚C) Parameter Operating supply voltage range Symbol Range VCC 4.75V to 5.25V ■ Electrical Characteristics (AVCC= DVCC= 5.0V, Ta= 25±2˚C) Parameter Symbol Supply current ICC Digital input leak current IDI IREFI REF leak current Reference supply output voltage VREFO Condition min typ max Unit 150 mA VIN = 5V (HI), VIN = 0V (LO) ± 30 µA VIN = 5V (HI), VIN = 0V (LO) ± 30 µA 90 IREFO = 3.0mA 2.06 2.7 3.24 V RES 10 Linearity error EL ± 0.5 ±1.0 LSB Differential linearity error ED ± 0.5 ±1.0 LSB Resolution Full scale output voltage VFS Zero scale output voltage VZS Maximum conversion rate FCMAX RREF = 350Ω RO = 75Ω VREFO – VREFI = 1.4V Bit 4.9 5.0 5.1 V 3.8 4.0 4.2 V MSPS 50 ±4 Zero scale matching MZ VZS = 4.0V 2nd harmonics level D fOUT = 10MHz (– 38) dB Crosstalk CT fOUT = 10MHz (– 43) dB Note) The characteristics value in parentheses is not a guaranteed value, but reference one on design. % ICs for TV AN8146FBQ ■ Operation Descriptions ● Recommended Operating Conditions (AVCC= DVCC= 5.0V, Ta= 25±5˚C) Parameter Symbol min Conditions VREFI Reference voltage typ Note V Ω RO Digital input voltage VIH 2.4 DVCC Digital input voltage VIL 0 0.8 Clock pulse width tWH Refer to the timing chart. 8 ns 1 Clock pulse width tWL Refer to the timing chart. 8 ns 1 tS Refer to the timing chart. 5 ns tH Refer to the timing chart. Holding time Reference voltage input voltage 75 1 VREF1 V V ns – 0.3 AVCC V 2 Analog output current IOUT 0 30 mA 2 Reference power supply output current IREFO –10 0 mA 2 Note 1) tWH + tWL ≥20ns Note 2) Use it under the condition : AVCC = DVCC, and AGND = DGND (Cautions on surge) Comparing with the other pins, Pin50 has a lower negative-surge resistance (Approx. –190V at 200pF). Therefore, particular care must be taken when it is used. Operational Timing tWH tWL Clock input tS tH Data input Dn – 1 Dn Dn + 1 ■ Reference Power Dissipation on Package PD – Ta 1416 1,400 Power Dissipation PD (mW) Unit Output load resistance Set-up time ● max 1.3 Glass epoxy board (50 × 50 × 0.8tmm) Rthj – a = 70.6˚C/W PD =1416mW (25˚C) 1,200 1,000 IC without heat sink Rthj – a =116.2˚C/W PD = 861mW (25˚C) 861 800 600 400 200 0 0 25 50 75 100 125 Ambient Temperature Ta (˚C) 150