Chapter 6. Others; Function Table Of Ic - Sharp QT-V5E Service Manual

QT-V5E/QT-V5H
CHAPTER 6. E Market QT-V5E/QT-V5H Service Manual QT-V5E/QT-V5H Audio
OTHERS

[1] Function table of IC

IC101 9HX06526160501: PLL (BU2616F)
Pin No. Terminal Name Input/Output
1 XOUT
2 XIN
3 CE
4 DA
5 CK
6 DO
7 SD
8 IFIN
9 P3
10 P0
11 P1
12 P2
13 AMIN
14 FMIN
15 VDD
16 PD1
17 PD2
18 VSS
IC203 9HX06830480284: DC-DC Converter (IRU3048CS)
Pin No. Terminal Name
1 GND
2 FB2
3 COMP1
4 COMP2
5 VCH2
6 HDRV2
7 LDRV2
8 PGND
9 VCC
10 LDRV1
11 HDRV1
12 VCH1
13 VOUT3
14 FB3
15 SS
16 FB1
Setting in Reset
OUTPUT Crystal oscillation
INPUT Crystal oscillation
INPUT Chip enable
INPUT Serial data
INPUT Clock signal
—— Data out
INPUT SD input
INPUT IF input
—— OUTPUT
——
——
——
INPUT AM input
INPUT FM input
INPUT Power supply
—— Phase compari-
son output
——
—— GROUND
Ground pin.
Inverting inputs to the error amplifiers. These pins work as feedback inputs for each channel, and are connected
directly to the output of the switching regulator via a resistor divider to set the output voltages.
Compensation pins for the error amplifiers.
Compensation pins for the error amplifiers.
Supply voltage for the high side output drivers. These are connected to voltages that must be at least 4 v higher than
their bus voltages (assuming 5 v threshold MOSFET). A minimum of 1µF high frequency capacitor must be con-
nected from these pins to PGng pin to provide peak drive current capability.
Output driver for the high side power MOSFET. Connect a diode, such as BAT54 or 1N4148, from these pins to
ground for the application when the inductor current goes negative (Source/Sink), soft-start at no load and for the
fast load transient from full load to no load.
Output driver for the synchronous power MOSFET.
This pin serves as the separate ground for MOSFET's driver and should be connected to the system's ground plane.
Supply voltage for the internal blocks of the IC.
Output driver for the synchronous power MOSFET.
Output driver for the high side power MOSFET. Connect a diode, such as BAT54 or 1N4148, from these pins to
ground for the application when the inductor current goes negative (Source/Sink), soft-start at no load and for the
fast load transient from full load to no load.
Supply voltage for the high side output drivers. These are connected to voltages that must be at least 4 v higher than
their bus voltages (assuming 5 v threshold MOSFET). A minimum of 1µF high frequency capacitor must be con-
nected from these pins to PGng pin to provide peak drive current capability.
Driver signal for the LDO's external transistor.
LDO's feedback pin, connected to a resistor divider to set the output voltage of LDO.
Soft-Start pin. THE converter can be shutdown by pulling this pin below 0.5 v.
Inverting inputs to the error amplifiers. These pins work as feedback inputs for each channel, and are connected
directly to the output of the switching regulator via a resistor divider to set the output voltages.
For generation of standard frequency and internal clock. Connected to 7.2 MHz
crystal resonator.
When CE is H, DA is synchronous with the rise of CK and read to the internal
shift register. DA is then latched at the timing of the fall of CE. Also, output data
is output from the CD terminal synchronous to the rise.
Comes ON during IF frequency detection or SD detection.
SD signal is input, Observed by DO terminal. Input is for IF frequency.
Controlled on the basis of input.
Local input for AM.
Local input for AM.
Power supply, with 4.0 V to 6.0 V applied voltage.
High level when value obtained by dividing local output is higher than standard
frequency. Low level when value is lower. High impedance when value is same.
GROUND
Function
6 – 1
Function