Crt/Tv Interface; Figure 5-2: External Circuitry For Crt/Tv Interface - Epson S1D13506 Technical Manual

Page 44

5.5 CRT/TV Interface

9.2 mA
or
4.6 mA
IREF
R
G
B
DAC V
S1D13506
X25B-A-001-12
The following figure shows external circuitry for the CRT/TV interface.
CRT/TV
(REG[05Bh] bit 3 = 0)
DAC V
DD
9.2 mA
2N2222
69.8Ω
1%
DAC V DAC V
SS SS
}
150Ω 150Ω 150Ω
1% 1% 1%
DAC V DAC V
SS SS
SS

Figure 5-2: External Circuitry for CRT/TV Interface

Note
Example implementation only, individual characteristics of components may affect
actual IREF current.
CRT Only
(REG[05Bh] bit 3 =1)
= 3.3V
OR
DAC V
1.5kΩ
1%
4.6 mA
2N2222
1kΩ
140Ω
1%
1%
DAC V DAC V
SS
To CRT/TV
Epson Research and Development
Vancouver Design Center
CRT Only
(REG[05Bh] bit 3 =1)
= 3.3V OR
DAC V
DD
1.5kΩ
4.6 mA
1%
R
29Ω
1kΩ
1%
290Ω
1%
1%
DAC V DAC V
SS
SS
Hardware Functional Specification
Issue Date: 02/03/26
= 2.7V to 5.5V
DD
1µF
V+
LM334
V-
1N457
SS