MAX4399 Datasheet, PDF (8/33 Pages) Maxim Integrated Products – Audio/Video Switch for Three SCART Connectors

Audio/Video Switch for Three SCART
Connectors
Typical Operating Characteristics (continued)
(V_V12 = 12V, V_{V_VID} = 5V, V_{V_DIG} = 5V, 0.47µF ceramic X5R capacitor in parallel with a 10µF aluminum electrolytic capacitor from
V_AUD to G_AUD, no load, T_A = +25°C, unless otherwise noted.)
INPUT CLAMP CURRENT
vs. INPUT VOLTAGE
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0
1
2
3
4
5
INPUT VOLTAGE (V)
OUTPUT BIAS VOLTAGE
vs. TEMPERATURE
2.5
CHROMA
2.0
1.5
RGB, LUMA, CVBS
1.0
0.5
0
0
25
50
75
TEMPERATURE (°C)
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11, 22, 30
12
13
14
15
16
NAME
V_DIG
DEV_ADDR
SDA
SCL
INTERRUPT_OUT
G_DIG
ENC_L_IN
ST_AUX_IN
ENC_R_IN
AUD_BIAS
FUNCTION
Digital Supply Voltage. Connect to 5V.
Device Address Set Input. Connect to G_DIG to set write and read addresses of 94h and 95h,
respectively. Connect to V_DIG to set write and read addresses of 96h and 97h, respectively.
Bidirectional Data I/O. I²C-compatible, 2-wire interface data input/output. Output is open drain.
Clock Input. I²C-compatible, 2-wire interface clock.
Interrupt Output. INTERRUPT_OUT is an open-drain output that goes high impedance to
indicate a change in the slow switch lines, AUX_SS, TV_SS, or VCR_SS.
Digital Ground
Digital Encoder Left-Channel Audio Input
Satellite Dish Tone Input
Digital Encoder Right-Channel Audio Input
Audio Input Bias Voltage. Bypass AUD_BIAS with a 10µF capacitor and a 0.1µF capacitor to
G_AUD.
V_AUD
Audio Supply Voltage. Connect all V_AUD together. An on-board linear regulator creates the
+8V audio supply voltage from V12. Bypass pin 30 with a 10µF aluminum electrolytic capacitor
in parallel with a 0.47µF low-ESR ceramic capacitor to audio ground, and bypass pins 11 and
22 with 0.1µF capacitors to audio ground.
AUX_L_IN
AUX_R_IN
VCR_R_IN
VCR_L_IN
TV_R_IN
AUX SCART Left-Channel Audio Input
AUX SCART Right-Channel Audio Input
VCR SCART Right-Channel Audio Input
VCR SCART Left-Channel Audio Input
TV SCART Right-Channel Audio Input
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