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
1% 1k
1%
1.5k
1%
DAC VSS DAC VSS
V+
R
V-
DAC VSS DAC VSS
DAC VDD = 2.7V to 5.5V
DAC VDD = 3.3V
LM334
290
1%
29
1% 1N457
1µF
150
1% 150
1% 150
1%
DAC VSS DAC VSS DAC VSS
4.6 mA

OR

IREF
R
G
BTo CRT
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