HD49307
Three-Channel 8-bit D/A Converter
November 1996
Description
The HD49307 is a high-speed, low-power 8-bit D/A converter monolithic CMOS LSI which has three
channels of clock and RGB data inputs. It is appropriate for applications which require three channel
systems, such as digital TV and graphical displays.
Functions
Resolution: 8 bits
Linearity error: 0.2%
Current output type: 13.3 mA
3 channels
Maximum conversion rate: 30 MHz (Min)
Analogue output voltage range: V
DD
to V
DD
1 V
Digital input voltage: TTL and CMOS level
Power supply voltage: +5.0 V single
Power consumption: 300 mW (Typ)
HD49307
3
Pin Functions
Pin No.
Symbol
Function
42, 45 to 51
R1 to R8
R channel digital signal input: R1 = MSB, R8 = LSB
52 to 54, 1 to 5
G1 to G8
G channel digital signal input: G1 = MSB, G8 = LSB
6, 8 to 12, 16, 17
B1 to B8
B channel digital signal input: B1 = MSB, B8 = LSB
38
Rout
R channel analog signal output
36
Gout
G channel analog signal output
33
Bout
B channel analog signal output
19
RCLK
R channel clock input
20
GCLK
G channel clock input
21
BCLK
B channel clock input
26
CBL
Bypass capacitor pin
25
CBU
Phase compensation capacitance pin
23, 41
DV
DD
Digital power supply
31, 39
AV
SS
Analog ground
32, 34, 37, 40
AV
DD
Analog power supply
22
DV
SS
Digital ground
30
V
RREF
Reference voltage input pin
7, 13 to 15, 18, 24, 27 to 29
35, 43, 44, 55, 56
NC
No connections*
1
Note:
1. Do not connect anything to the NC pins.
PDF 
ZIP
