Document
FUJITSU SEMICONDUCTOR DATA SHEET
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DS04-28309-3E
ASSP
TV/VCR D/A Converter (3 ch, 8 bit)
MB86029
s DESCRIPTION
The MB86029 is a 3-channel high-speed CMOS 8-bit D/A converter for TV and VCR application. The MB86029 features on-chip voltage reference, pedestal insertion, and power-down circuits, and a maximum conversion speed of 60 MSPS for digital TV and graphic display application.
s FEATURES
• Functions Maximum conversion speed: 60 MSPS max. Current output mode Output current adjusted by external resistor Pedestal insertion Power-down function On-chip reference power supply (External reference power supply can be used.) Load resistance 75Ω 1.60V 30 MPSP
• Conversion Characteristics Output voltage amplitude Conversion speed • Supply voltage • Current consumption 37.5Ω 0.80V 60 MPSP 150Ω 1.60V 20 MPSP
Single +5 V supply Typical stage: 500 mW Power-down mode: 20 mW max.
s PACKAGES
42 pin, Plastic DIP 48 pin, Plastic QFP
(DIP-42P-M03)
(FPT-48P-M16)
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
MB86029
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s PIN ASSIGNMENTS
(TOP VIEW) B6 B5 B4 B3 B2 B1 B0 VSSD BOUT VDDA VDDA GOUT VSSA G0 G1 G2 G3 G4 G5 G6 G7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 B7 CLK BLANK VDDD PD VROUT VRIN PED FS VDDA VDDA ROUT VSSA R0 R1 R2 R3 R4 R5 R6 R7
VROUT
(TOP VIEW)
ROUT
VDDA
VDDA
VSSA
PED
VRIN
NC.
R0
R1
VSSA PD VDDD BLANK CLK B7 B6 B5 B4 B3 B2 B1
48 47 46 45 44 43 42 41 40 39 38 37 1 36 2 35 3 4 5 6 7 8 9 10 11 34 33 32 31 30 29 28 27 26
R2
FS
NC. R3 R4 R5 R6 R7 G7 G6 G5 G4 G3 NC.
12 25 13 14 15 16 17 18 19 20 21 22 23 24
B0 G0 G1 GOUT VSSD VSSA NC. BOUT VDDA VDDA VSSA G2
(DIP-42P-M03)
(FPT-48P-M16)
2
MB86029
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s PIN DESCRIPTIONS
Circuit Pin No. DIP 10, 11, 32, 33 Power supply circuit 13, 30 39 8 22 to 29 FPT 17, 18, 42, 44 1, 15, 21, 40 3 14 39 to 37, 35 to 31 22 to 24, 26 to 30 Symbol I/O Pin Name Function
VDDA
—
Analog power supply
Analog power supply +5V
VSSA VDDD VSSD R0 to R7
— — — I
Analog ground Digital power supply Digital ground
Analog power supply ground Digital power supply +5 V Digital power supply ground
Digital signal input. Digital signal input
14 to 21
G0 to G7
I MSB : R7, G7, B7 LSB : R0, G0, B0
Input circuit
1 to 7, 13 to 6 42 38 41 40 36 31 12 9 2 5 4 47 41 20 16 45
B0 to B7 PD CLK BLANK VRIN ROUT GOUT BOUT FS
I I I I I O O O O Full-scale current adjustment Pedestal current adjustment Reference voltage output The full-scale current is adjusted by an external resistor connected between this pin and the GND pin. The pedestal current is adjusted by an external resistor connected between this pin and the GND pin. On-chip 2.5 V reference output Analog output Analog RGB output Power-down control Clock input Pedestal control External voltage reference High : Power-down mode Low : Operating Data is read in, and analog signal is output on the falling edge of the CLK. High : Pedestal output Low : No pedestal For connection of an external reference voltage (2.5 V typ.)
Output circuit
34
35 37
46 48
PED VROUT
O O
3
MB86029
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s BLOCK DIAGRAM
8 R0 to R7 Decoder circuit Latch circuit 1 bit DAC 8 bit DAC ROUT
8 G0 to G7 Decoder circuit Latch circuit 1 bit DAC 8 bit DAC GOUT
8 B0 to B7
Decoder circuit
Latch circuit
8 bit DAC
BOUT
1 bit DAC
VDDA (+5 V) BLANK Reference voltage circuit 2.5 V Pedestal current adjustment circuit Full-scale current adjustment circuit VSSA (0 V)
CLK PD
VDDD (+5 V) VSSD (0 V)
VROUT
VRIN
PED 5.1 kΩ
FS 5.1 kΩ
:Data signal :Control signal
4
MB86029
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s ABSOLUTE MAXIMUM RATINGS
(VSSD = VSSA = 0 V, Ta= +25°C) Parameter Power supply voltage Analog power supply current Analog ground current Digital supply current Digital ground current Analog output current Digital input/output current Input/output voltage Storage temperature * : VDD = VDDD = VDDA Note: Permanent device damage may occur if the above ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Symbol VDD * IDDA ISSA IDDD ISSD IO II/O VI/O Tstg Rating –0.3 to +7.0 –10 to +200 –10 to +50 –200 to +10 –10 to +50 –10 to +30 –10 to +10 –0.3 to VDD +0.3 –40 to +125 Unit V mA mA mA mA mA mA V °C
s RECOMMENDED OPERATING CONDITIONS
(VSSD = VSSA = 0 V) Parameter Power supply voltage Reference power supply input voltage Low-level digital input voltage High-level digital input voltage Ambient operating temperature * : VDD = VDDD = VDDA Symbol VDD * VRIN VIL VIH Top Value Min. 4.75 2.2 0 2.2 0 Typ. 5.