Rainbow Electronics MAX9597 - Manual (Page 11)

MAX9597
Low-Power Audio/Video Interface
for Single SCART Connectors
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Pin Description
PIN NAME FUNCTION
1 V AUD
Audio Supply. Connect to a 3.3V supply. Bypass with a 10μF aluminum electrolytic capacitor in
parallel with a 0.1μF ceramic capacitor to EP.
2 C1P Charge-Pump Flying Capacitor Positive Terminal. Connect a 1μF capacitor from C1P to C1N.
3 C1N Charge-Pump Flying Capacitor Negative Terminal. Connect a 1μF capacitor from C1P to C1N.
4 CPVSS
Charge-Pump Negative Power Supply. Bypass with a 10μF aluminum electrolytic capacitor in
parallel with a 1μF ceramic capacitor to EP.
5 DEV_ADDR Device Address Set Input. Connect DEV_ADDR to GND, V VID , SDA, or SCL. See Table 3.
6 SDA Bidirectional, I 2 C Data I/O. Output is open drain and tolerates up to 3.6V.
7 SCL I 2 C Clock Input
8 ENC_B_IN Encoder Blue Video Input
9 ENC_G_IN Encoder Green Video Input
10 ENC_R/C_IN Encoder Red/Chroma Video Input
11 ENC_CVBS_IN Encoder Composite Video Input
12 TV_CVBS_OUT TV SCART Composite Video Output. The sync tip is biased at 0.3V.
13 V VID
Video and Digital Supply. Connect to a +3.3V supply. Bypass with a parallel 1μF and 0.1μF
ceramic capacitor to GND. V
VID
also serves as a digital supply for the I 2 C interface.
14 TV_FS_OUT
TV SCART Fast-Switching Logic Output. This signal drives a back-terminated, 75 Ω transmission
line.
15 GND Video Ground
16 TV_R/C_OUT
TV SCART Red/Chroma Video Output. The black level of the red signal is set to 0.3V and the
blank level of the chroma signal is 1.5V.
17 TV_G_OUT TV SCART Green Video Output. The black level of the green signal is set to 0.3V.
18 TV_B_OUT TV SCART Blue Video Output. The black level of the blue signal is set to 0.3V.
19 V 12 +12V Supply. Bypass V 12 with a 0.1μF capacitor to EP.
20 TV_SS_OUT TV SCART Slow-Switch Signal Output
21 TV_OUTL TV SCART Left-Channel Audio Output
22 ENC_INL+ Left Input-Amplifier Noninverting Terminal
23 ENC_INL- Left Input-Amplifier Inverting Terminal
24 ENC_INLOUT Left Input-Amplifier Output
25 ENC_INROUT Right Input-Amplifier Output
26 ENC_INR- Right Input-Amplifier Noninverting Terminal
27 ENC_INR+ Right Input-Amplifier Inverting Terminal
28 TV_OUTR TV SCART Right-Channel Audio Output
— EP
Exposed Pad. The exposed pad is the internal ground for the audio amplifiers and charge pump.
A low-impedance connection to EP is required for proper isolation.