Features; Ncp1014; General Description - Hitachi 32LD8700C Service Manual

receivers use the latest generation of PanelLink TMDS core technology. These PanelLink cores pass
all HDMI compliancy tests.
11.22.2.

Features

• HDMI 1.0 and DVI 1.0 compliant receiver
• Integrated PanelLink core supports DTV resolutions (480i/576i/480p/576p/720p/1080i)
• Digital video interface supports video processors:
o 24-bit RGB 4:4:4
o 24-bit YCbCr 4:4:4
o 16/20/24-bit YCbCr 4:2:2
o 8/10/12-bit YCbCr 4:2:2 embedded syncs
• Analog RGB and YPbPr output:
o 10-bit DAC
o Separate or Composite Syncs (Sync on G)
• S/PDIF output supports PCM, Dolby Digital, DTS digital audio transmission (32-48kHz Fs) using IEC
60958 and IEC 61937.
2
• Programmable I S interface for connection to low-cost audio DACs.
• Integrated HDCP decryption engine for receiving protected audio and video content
• Pre-programmed HDCP keys provide highest level of key security, simplifies manufacturing
• Programmable registers via slave I
• 3.3V operation in 100-pin TQFP package
• Flexible power management

11.23. NCP1014

11.23.1.

General Description

The NCP101X series integrates a fixed frequency current modecontroller and a 700 V MOSFET.
Housed in a PDIP 7 or SOT 223package, the NCP101X offers everything needed to build a rugged
and low cost power supply, including soft start, frequency jittering, short circuit protection, skip cycle,
a maximum peak current setpoint and a Dynamic Self Supply (no need for an auxiliary winding). Unlike
other monolithic solutions, the NCP101X is quiet by nature: during nominal load operation, the part
switches at one of the available frequencies (65 100 130 kHz). When the current setpoint falls below a
given value, e.g. the output power demand diminishes, the IC automatically enters the so called skip
cycle mode and provides excellent efficiency at light loads. Because this occurs at typically 1/4 of the
maximum peak value, no acoustic noise takes place. As a result, standby power is reduced to the
minimum without acoustic noise generation. Short circuit detection takes place when the feedback
signal fades away, e.g. in true short circuit conditions or in broken Optocoupler cases. External
disabling is easily done either simply by pulling the feedback pin down or latching it to ground through
an inexpensive SCR for complete latched off. Finally soft start and frequency jittering further ease the
designer task to quickly develop low cost and robust offline power supplies. For improved standby
performance, the connection of an auxiliary winding stops the DSS operation and helps to consume
less than100 mW at high line. In this mode, a built in latched overvoltage protection prevents from
lethal voltage runaways in case the Optocoupler would brake.
11.23.2. Features
• Built in 700 V MOSFET with Typical R
• Large Creepage Distance Between High Voltage Pins
• Current Mode Fixed Frequency Operation: 65 kHz–100 kHz 130 kHz
• Skip Cycle Operation at Low Peak Currents Only: No Acoustic Noise!
• Dynamic Self Supply, No Need for an Auxiliary Winding
• Internal 1.0 ms Soft Start
• Latched Overvoltage Protection with Auxiliary Winding Operation
• Frequency Jittering for Better EMI Signature
• Auto Recovery Internal Output Short Circuit Protection
• Below 100 mW Standby Power if Auxiliary Winding is Used
• Internal Temperature Shutdown
• Direct Optocoupler Connection
• SPICE Models Available for TRANsient Analysis
TFT TV Service Manual
2
C interface
of 11 and 22
DSon
24