Philips S1D13505 用户手册
Epson Research and Development
Page 37
Vancouver Design Center
Hardware Functional Specification
S1D13505
Issue Date: 01/02/02
X23A-A-001-14
5.5 CRT Interface
The following figure shows the external circuitry for the CRT interface.
Figure 5-3: External Circuitry for CRT Interface
2N2222
4.6 mA
4.6 mA
140
Ω
1%
1k
Ω
1%
1.5k
Ω
1%
DAC V
SS
DAC V
SS
V+
R
V-
DAC V
SS
DAC V
SS
DAC V
DD
= 2.7V to 5.5V
DAC V
DD
= 3.3V
LM334
290
Ω
1%
29
Ω
1%
1N457
1
µ
F
150
Ω
1%
150
Ω
1%
150
Ω
1%
DAC V
SS
DAC V
SS
DAC V
SS
4.6 mA
OR
IREF
R
G
B
G
B
To CRT
}