Sharp FO-4500, Руководство по обслуживанию

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IC22: VHiTLS1049/-1 (TLS1049)
1 SEL
2 VREF+
3 AVO
4 VRLM
5 VRHF
6 PHCAP
7 CLPB
8 CLPF
9 SHCAP
10 VO
11 M-EX
12 VI
13 VC
14 VH
15 AGND
30 AVCC
29 DVCC
28 PGST
27 B-/H
26 GTW-
25 PHIBL-
24 B5
23 B4
22 B3
21 B2
20 B1
19 B0
18 ADCK
17 PHISH-
16 DGND
No Terminal Name Type Function
1 SEL IN D Input pre-amp gain switching terminal.
L: Internal, H: External
2 VREF+ OUT A VREF upper voltage monitor terminal for AD.
3 AVO OUT A AD input monitor terminal.
4 VRLM IN A In the binary mode, upper voltage minimum limit setting
terminal for AD.
5 VRHF IN A In the halftone mode, upper voltage setting terminal for AD.
6 PHCAP I/O A External capacitor connecting terminal for AGC.
7 CLPB IN A DC clamp, offset canceler, and signal input.
8 CLPF OUT A Sample hold buffer output.
9 SHCAP I/O A For sample hold, external capacitor connecting terminal.
10 VO OUT A Input pre-amp output
11 M-EX IN A When setting the external gain, minus input of input pre-amp.
12 VI IN A Video signal input.
13 VC I/O A Internal reference voltage smoothing terminal.
External capacitor 1
µ
F connection.
14 VH OUT A Voltage output for VRHF and VRLM generation.
Terminal voltage: 3.65V
15 AGND PS – Analog GND power supply.
16 DGND PS – Digital GND power supply.
17 PHISH IN D Control input for sample hold. L: Sample, H: Hold
18 ADCK IN D Reference clock input for AD converter.
19 B0 OUT D AD converter data output B0. LSB
20 B1 OUT D AD converter data output B1.
21 B2 OUT D AD converter data output B2.
22 B3 OUT D AD converter data output B3.
23 B4 OUT D AD converter data output B4.
24 B5 OUT D AD converter data output B5. MSB
25 PHIBL IN D Control input for DC clamp. L: Clamp
26 GTW IN D Binary setting voltage switching control input for AGC.
H: Binary minimum limit, L: AVO
27 B/H IN D Halftone, binary setting voltage switching terminal for AGC.
H: Halftone, L: Binary minimum limit, AVO
28 PGST IN D External capacitor discharge control input for AGC.
L: Discharge
29 DVCC PS – Digital VCC power supply.
30 AVCC PS – Analog VCC power supply.
(Note 16) The abbreviations in the column of “Type” are as follows; IN: Input, OUT: Output, I/O:
Input/Output, A: Analog, D: Digital, PS: Power supply pin.
FO-4500H
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