Sharp lc-42ad5e Service Manual page 72

LC-42AD5E/RU/S
2.8. IC4001 (RH-iXB680WJZZQ)
2.8.1 Pin Connections and short description
Pin No.
Digital power-supply ball assignment
A8, B8, B19, B20, C8, VDD
D8, F1, F2, F3, F4, U23,
U24, V1, V2, V3, V4,
AA23, AA24, AA25,
AA26, AC7, AC15, AD7,
AD15, AE7, AE15, AF7,
AF15
B22, C3, C4, C10, D3, VDD3
D4, D10, E4, G25, M1,
M2, M3, M4, W23, W24,
AC3, AC4, AC10, AC13,
AC19, AC23, AC24, AD3,
AD4, AD10, AD13, AD19,
AD23, AD24
AD6 RTCVDD
B13, B21, D25, K10 to GND
K17, L10, L11, L12, L13,
L14, L15, L16, L17, M10,
M11, M12, M13, M14,
M15, M16, M17, N10,
N11, N12, N13, N14,
N15, N16, N17, P10, P11,
P12, P13, P14, P15, P16,
P17, R10 to R17, T10,
T11, T12, T23, T14, T15,
T16, T17, U10, U11, U12,
U13, U14, U15, U16, U17
Analog power-supply ball assignment
AE11 VDDVDACRGB
AE9 VDDVDACYCC
AD11 GNDVDACRGB
AD9 GNDVDACYCC
AD8 SHIELDVDAC
AE10 IREFDACRGB
AE8 IREFDACYCC
AC9 VREFDACRGB
AC8 VREFDACYCC
A10 VDDVPLL
C13 VDDAUDIOFSYN
B12 GNDAUDIOFSYN
C12 VDDGENFSYN
B11 GNDGENFSYN
AA4 VDDAADAC
AA2 VSSAADAC
Y4 VDDASADAC
AB2 VCCAADAC
AB3 GNDAADAC
AC2 VCCASADAC
AD2 IREF
AE2 VBGFIL
RTC ball assignment
AF4 LPCLKIN
AF5 LPCLKOSC
A16 NO32XTAL
System ball assignment
A13 CLK27MA
A11 CLKSPEEDSEL
A12 AUXCLKOUT
AF6 not RESET
AD14 not WDOGRSTOUT
Pin Name I/O
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1.6 V power supply.
3.3 V power supply.
Low power controller 1.8 V power supply.
Ground for power supplies.
3.3 V power supply for RGB video DAC
3.3 V power supply for YCC video DAC
Ground for RGB video DAC
Ground for YCC video DAC
Shield ground for 2 x video DACs
RGB video DAC current reference
YCC video DAC current reference
RGB video DAC voltage reference
YCC video DAC voltage reference
Supply 3.3 V power for video PLL
Supply 1.8 V dedicated power for low jitter audio clock frequency synthe-
sizer
Dedicated ground for low jitter audio clock frequency synthesizer
1.8 V dedicated power for non audio clock frequency synthesizer
Dedicated ground for non audio clock frequency synthesizer
3.3 V power for audio DAC
Ground for audio DAC command switches
3.3 V power for audio DAC substrate
3.3 V power for audio DAC command switches
Ground for audio DAC
3.3 V power for audio DAC command switches substrate
Audio DAC output reference current
Audio DAC filtered output reference voltage
Low power clock input (1.8V tolerant).
Low power clock oscillator (1.8V tolerant).
Select for 32kHz clock source. 0:XTAL 1:Internel divider
Selectable input clock to PLL or for x1 mode (5 V tolerant)
PLL speed select (5 V tolerant)
Auxiliary clock for general use (5 V tolerant)
System reset (1.8 V tolerant)
Internal watchdog timer reset (5 V tolerant)
5 – 15
Pin Function