
TERMINAL FUNCTIONS (DCA) (continued)
NAME
NO.
I/O
DESCRIPTION
VIN
32
I
Input supply
VIN
33
I
Input supply
VIN
34
I
Input supply
GND
35
Ground pin
LX3
36, 37
O
Switching node for Buck 3
VIN3
38
Input supply for Buck 3. Fit a 10-μF ceramic capacitor close to this pin.
BST3
39
I
Bootstrap capacitor for Buck 3. Fit a 47-nF ceramic capacitor from this pin
to the switching node.
EN3
40
I
Enable pin for Buck 3. A low level signal on this pin disables it. If pin is
left open a weak internal pull-up to V3V will allow for automatic enable.
For a delayed start-up add a small ceramic capacitor from this pin to
ground.
PAD
Power pad. Connect to ground.
2-26
Содержание T 748
Страница 1: ...L A U N A M E C I V R E S AV Surround Sound Receiver T748 AV Surround Sound Receiver T748 ...
Страница 6: ...DISASSEMBLY REMOVAL OF FRONT PANEL 1 6 ...
Страница 7: ...PRINCIPAL PART LOCATION 1 7 ...
Страница 18: ...IC 211 MX29LV32DTTI 70G FLASH OF DSP 2 6 ...
Страница 19: ...2 7 ...
Страница 29: ...2 17 BLOCK DIAGRAM ...
Страница 40: ...IC 913 IC 918 TC74VCX541FT OCTAL BUS BUFFER 2 28 ...
Страница 44: ...BLOCK DIAGRAM MCU DSP PART 2 32 2 33 ...
Страница 45: ...BLOCK DIAGRAM AUDIO PART 2 34 2 35 ...
Страница 46: ...BLOCK DIAGRAM HDMI PART 2 36 2 37 ...
Страница 62: ...2 68 2 69 PRINTED CIRCUIT BOARD FRONT TOP VIEW ...
Страница 63: ...2 70 2 71 FRONT BOTTOM VIEW ...
Страница 64: ...2 72 2 73 INPUT TOP VIEW ...
Страница 65: ...2 74 2 75 INPUT BOTTOM VIEW ...
Страница 66: ...2 76 2 77 MAIN TOP VIEW ...
Страница 67: ...2 78 2 79 MAIN BOTTOM VIEW ...
Страница 68: ...2 80 2 81 SUB TOP VIEW ...
Страница 69: ...2 82 2 83 SUB BOTTOM VIEW ...
Страница 70: ...2 85 HDMI BOTTOM VIEW 2 84 HDMI TOP VIEW ...