Lsi Pin Description （Lsi端子機能表; Ic Block Diagram （Icブロック図 - Yamaha MG206C-USB Service Manual

MG206C-USB/MG206C
I
LSI PIN DESCRIPTION （LSI端子機能表）
• PCM2900E/2K (X7143A00) USB PROTOCOL CONTROLLER
PIN
NAME I/O
No.
1 D+ I/O USB differential input/output plus
2 D- I/O USB differential input/output minus
3 VBUS - Connect to USB power (VBUS)
4 DGNDU - Digital ground for USB transceiver
5 HID0 I HID key state input(mute), active high
6 HID1 I HID key state input(volume up),active high
7 HID2 I HID key state input(volume down),active high
8 SEL0 I Must be set to high
9 SEL1 I Must be set to high
10 VCCCI - Internal analog power supply for codec
11 AGNDC - Analog ground for codec
12 VINL I ADC analog input for L-channel
13 VINR I ADC analog input for R-channel
14 VCOM - Common for ADC/DAC(VCCCI/2)
I
IC BLOCK DIAGRAM （IC ブロック図）
• NJM2068M-D (TE2) (X3505A00)
Dual Operational Amplifier
JACK20: IC702, 752, 802, 852
MIX20: IC001, 003, 901, 902, 951, 952, ICM01
USB: IC103, 104
Output A
Inverting
Input A
Non-Inverting
Input A
-DC Voltage Supply
• NJM072BM-E (TE1) (X4543A00)
Dual Operational Amplifier
JACK20: IC101, 201, 301, 401, 501, 601
V +
-
INPUT
+
INPUT
V -
24
FUNCTION
+DC Voltage
1 +V 8
Supply
Output B
2 7
- +
Inverting
3 6
+ -
Input B
Non-Inverting
-V
4 5
Input B
PIN
NAME I/O
No.
15 VOUTR O DAC analog output for R-channel
16 VOUTL O DAC analog output for L-channel
17 VCCP1I - Internal analog power supply for PLL
18 AGNDP - Analog ground for PLL
19 VCCP2I - Internal analog power supply for PLL
20 XTO O Crystal oscillator output
21 XTI I Crystal oscillator input
22 AGNDX - Analog ground for oscillator
23 VCCXI - Internal analog power supply for oscillator
24 TEST0 I Test pin, must be connected to GND
25 TEST1 O Test pin, must be left open
26 DGND - Digital gronud
27 VDDI - Internal digital power supply
28 SSPND O Suspend flag, active low
(Low: suspend, High: operational)
• KIA7812API (X4153A00)
Regulator +12V
PS20: IC105
R22 R17
R1
Q11
Q12
Q14
Q17
R19
R12
Q18
Q6
Q1
R18
R11
R7 C1
Z1
R2
Q2
R3
Q13
Q4
Q3 Q5 Q9
R13
R4
R5
R6
OUTPUT
USB: IC101
FUNCTION
1 INPUT
R23
Q11-1
Q15
Q16
R14
R10 R15
Q19
R16
3 OUTPUT
R20
R9
Q10
R21
Q7
Q8
R8
2 COMMON (GND)