Sharp LC-46LD266K (serv.man2) Service Manual ▷ View online
25
LC-46LD264
LC-46LD265
LC-46LD266
Register. 2176
8
Page size 2176 bytes
Block size (128K 8K) bytes
• Modes Read, Reset, Auto Page Program, Auto Block Erase, Status Read, Page Copy
• Mode control
Serial input/output Command control
Serial input/output Command control
• Number of valid blocks
Min 1004 blocks Max 1024 blocks ‧
• Power supply VCC = 2.7V to 3.6V
• Access time Cell array to register 25μs max Serial Read Cycle 25 ns min (CL=50pF)
• Program/Erase time
• Access time Cell array to register 25μs max Serial Read Cycle 25 ns min (CL=50pF)
• Program/Erase time
Auto Page Program 300μs/page typ. Auto Block Erase 2.5 ms/block typ.
• Operating current
Read (25 ns cycle) 30 mA max.
Program (avg.) 30 mA max
Erase (avg.) 30 mA max
Standby 50μA max
• Package TSOP I 48-P-1220-0.50 (Weight: 0.53 g typ.)
Read (25 ns cycle) 30 mA max.
Program (avg.) 30 mA max
Erase (avg.) 30 mA max
Standby 50μA max
• Package TSOP I 48-P-1220-0.50 (Weight: 0.53 g typ.)
•
8 bit ECC for each 512Byte is required.
7.4. U414 (74HC4052PW)
General Description
The 74HC4052 is a high-speed Si-gate CMOS device and is pin compatible with the HEF4052B. The device is specified in
The 74HC4052 is a high-speed Si-gate CMOS device and is pin compatible with the HEF4052B. The device is specified in
compliance with JEDEC standard no. 7A. The 74HC4052 is a dual 4-channel analog multiplexer/demultiplexer with common
select logic. Each multiplexer has four independent inputs/outputs (pins nY0 to nY3) and a common input/output (pin nZ). The
common channel select logics include two digital select inputs (pins S0 and S1) and an active LOW enable input (pin E). When
common channel select logics include two digital select inputs (pins S0 and S1) and an active LOW enable input (pin E). When
pin E = LOW, one of the four switches is selected (low-impedance ON-state) with pins S0 and S1. When pin E = HIGH, all
switches are in the high-impedance OFF-state, independent of pins S0 and S1. VCC and GND are the supply voltage pins for
the digital control inputs (pins S0, S1 and E). The VCC to GND ranges are 2.0 V to 10.0 V for the 74HC4052.The analog
inputs/outputs (pins nY0 to nY3 and nZ) can swing between VCC as a positive limit and VEE as a negative limit. VCC − VEE
may not exceed 10.0 V. For operation as a digital multiplexer/demultiplexer, VEE is connected to GND (typically ground).
may not exceed 10.0 V. For operation as a digital multiplexer/demultiplexer, VEE is connected to GND (typically ground).
Features
♦ Wide analog input voltage range from − 5 V to +5 V
♦ Wide analog input voltage range from − 5 V to +5 V
♦ Low ON resistance:
‧80 Ω (typical) at VCC − VEE = 4.5 V
‧80 Ω (typical) at VCC − VEE = 4.5 V
‧
70 Ω (typical) at VCC − VEE = 6.0 V
‧
60 Ω (typical) at VCC − VEE = 9.0 V
♦ Logic level translation: to enable 5 V logic to communicate with ±5 V analog signals
♦ Typical ‘break before make’ built-in
♦ Typical ‘break before make’ built-in
♦ Complies with JEDEC standard no. 7A
♦ ESD protection:
‧HBM JESD22-A114F exceeds 2000 V
‧
‧HBM JESD22-A114F exceeds 2000 V
‧
MM JESD22-A115-A exceeds 200 V
♦ Specified from − 40 °C to +85 °C and − 40 °C to +125 °C
Applications
♦ Analog multiplexing and demultiplexing
♦ Digital multiplexing and demultiplexing
Applications
♦ Analog multiplexing and demultiplexing
♦ Digital multiplexing and demultiplexing
♦ Signal gating
7.5. U601 (TAS5721)
General Description
The TAS5721 is an efficient, digital-input audio amplifier for driving 2.0 speaker systems configured as a bridge tied load (BTL),
The TAS5721 is an efficient, digital-input audio amplifier for driving 2.0 speaker systems configured as a bridge tied load (BTL),
2.1 systems with two satellite speakers and one subwoofer, or in PBTL systems driving a single speaker configured as a parallel
bridge tied load (PBTL). One serial data input allows processing of up to two discrete audio channels and seamless integration
to most digital audio processors and MPEG decoders. The device accepts a wide range of input data formats and sample rates.
to most digital audio processors and MPEG decoders. The device accepts a wide range of input data formats and sample rates.
A fully programmable data path routes these channels to the internal speaker drivers.
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LC-46LD264
LC-46LD265
LC-46LD266
The TAS5721 is a slave-only device, receiving all clocks from external sources. The TAS5721 operates with a PWM carrier
frequency between a 384-kHz switching rate and a 288-KHz switching rate, depending on the input sample rate. Oversampling,
frequency between a 384-kHz switching rate and a 288-KHz switching rate, depending on the input sample rate. Oversampling,
combined with a fourth-order noise shaper, provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.
An integrated ground centered DirectPath™ combination headphone amplifier and 2VRMS line driver is integrated in the
TAS5721.
Features
• Audio Input/Output– 10 W x 2 into 8 Ω With PVDD = 24 V
– Supports 2.0.
– Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I
• Audio Input/Output– 10 W x 2 into 8 Ω With PVDD = 24 V
– Supports 2.0.
– Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I
2
S)
– Integrated DirectPath™ Headphone Amplifier and 2 VRMS Line Driver
• Audio/PWM Processing
– Independent Channel Volume Controls With 24-dB to Mute in 0.5 dB Steps
– Separate Dynamic Range Control for Satellite and Sub Channels
• Audio/PWM Processing
– Independent Channel Volume Controls With 24-dB to Mute in 0.5 dB Steps
– Separate Dynamic Range Control for Satellite and Sub Channels
– 21 Programmable Biquads for Speaker EQ
– Programmable Two-Band Dynamic Range Control
– Support for 3D Effects
• General Features
• General Features
– I
2
C™ Serial Control Interface Operational Without MCLK
– Configurable I
2
C Address (0x34 or 0x36)
– Automatic Sample Rate Detection
– Thermal and Short-Circuit Protection
– Wide PVDD Supply Range (4.5 V to 24 V)
Applications
• LED/LCD TVs, Soundbar, Docking Stations, PC Speakers
Output Power vs. PVDD in 2.0 Mode
Output Power vs. PVDD in 2.0 Mode
7.6. IC9101 (SSC9522S-TL)
General Description
The SSC9522S is a controller IC (SMZ method) for half-bridge resonant type power supply, incorporating a floating drive circuit
for High-side MOSFET drive.
※
※
SMZ = Soft-switched Multi-resonant Zero Current switch.
All switching periods work with soft switching operation.
The IC is in SOP18 package, and suitable for high performance power supply system with small size, high efficiency and low
noise, because for various power supply specifications, more effective and easier design works are achievable with effective
noise, because for various power supply specifications, more effective and easier design works are achievable with effective
functions as the Automatic Dead Time Adjustment, the Uncontrollable Operation Detection and so on.
※
※
Uncontrollable Operation Detection = there are two areas in resonant circuit impedance; capacitance area and inductance
area. The Uncontrollable Operation occurs in capacitance area (the frequency is lower than the resonant frequency, fO), the
output voltage can not be controlled and the switching operation becomes hard switching.
Features
• SOP18 package
• Built-in floating drive circuit for High-side MOSFET
• Soft Start Function, reducing of power MOSFET stress and preventing Uncontrollable Operation, at startup
• Uncontrollable Operation Detection Function on pulse-by-pulse basis, improving the ability of transformer output wattage
because the frequency range is available up to the resonant frequency, fO, and reducing power MOSFET stress
• Automatic Dead Time Adjustment Function, not being necessary to make the dead time adjustment for each power supply
• Built-in floating drive circuit for High-side MOSFET
• Soft Start Function, reducing of power MOSFET stress and preventing Uncontrollable Operation, at startup
• Uncontrollable Operation Detection Function on pulse-by-pulse basis, improving the ability of transformer output wattage
because the frequency range is available up to the resonant frequency, fO, and reducing power MOSFET stress
• Automatic Dead Time Adjustment Function, not being necessary to make the dead time adjustment for each power supply
specification
• Protection Functions
- Line Undervoltage Protection Function-(Brown-In/Brown-Out Function)------------------Prevention of excessive input current
and overheat at low input voltage
- External Latch Function--------------------------------------Latch shutdown by external signal input
- Overcurrent Protection Function (OCP) ------------------Three steps protection corresponding to overcurrent levels
- Overvoltage Protection Function (OVP)------------------Latch shutdown
- Overload Protection Function (OLP) ----------------------Latch shutdown
and overheat at low input voltage
- External Latch Function--------------------------------------Latch shutdown by external signal input
- Overcurrent Protection Function (OCP) ------------------Three steps protection corresponding to overcurrent levels
- Overvoltage Protection Function (OVP)------------------Latch shutdown
- Overload Protection Function (OLP) ----------------------Latch shutdown
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LC-46LD264
LC-46LD265
LC-46LD266
8 DETAILED ICS INFORMATION
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
40
[2] DETAILED ICS INFORMATION
8.1 U401 (MT5561JUDT) & (MT5561PUDT only for LC-50LD266)
Block Diagram
28
LC-46LD264
LC-46LD265
LC-46LD266
LC-50LD264–LC-50LD265–LC-50LD265RU–LC-50LD266
41
Pin Connections and Short Description
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