HITACHI LCD - 17LD4220 _ 17LD4220U _ ICs USED & FUNCTIONS
MC 141585 [CHARACTER GENERATOR]
General description
This is a high performance
HCMOS device designed to interface with a micro controller unit to allow
colored symbols or characters to be displayed onto a LCD monitor. Because of
the large number of fonts, 512 fonts including 496 standard fonts and 16
multi-color fonts, LMOSD2-16 is suitable to be adopted for the multi-language
monitor application especially. It minimizes the MCU’s burden through its
built-in RAM.
By storing a full screen of
data and control information, this device has a capability to carry out ‘screen
refresh’ without any MCU supervision. Programmable hatch pattern generator is
added for individual pixel inspection.
Since there is no clearance between characters, special graphics
oriented characters can be generated by combining two or more character blocks.
The full OSD menu is formed of 15 rows x 30 columns which can by freely
positioned on anywhere of the monitor screen by changing vertical or horizontal
delay. Special functions such as
character background color, blinking, bordering or shadowing, four-level
windows with programmable size, row double height and double width,
programmable vertical height of character and row-to-row spacing, and
full-screen erasing and Fade-In/Fade-Out are also incorporated. There are 8 color selections for any
individual character display with row intensity attribute and window intensity
attribute to expand the color mixture on OSD menu.
FEATURES
- Totally 512 Fonts Including 496 Standard Fonts and 16 Multi-Color Fonts.
- 10x18 or 12x18 Font Matrix Selection
- Maximum Pixel CLK of 80MHz
- Maximum input resolution of 1580 dots/line (PIXin/HSYNC ratio)
- Wide Operating Frequency: max. 150KHz for Monitor
- Fully Programmable Character Array of 15 Rows by 30 Columns
- 8-Color Selection for Characters with Color Intensity Attribute on Each Row
- 7-Color Selection for Characters background
- True 16-Color Selection for Windows
- Shadowing on Windows with Programmable Shadow Width/Height/Color
- Fancy Fade-In/Fade-Out Effects
- Programmable Height of Character to Meet Multi-Sync Requirement
- Row To Row Spacing Control to Avoid Expansion Distortion
- Four Programmable Windows with Overlapping Capability
- Character Bordering or Shadowing
- Character/Symbol Blinking Function
- Programmable Vertical and Horizontal Positioning for Display Center
- M_BUS (IIC) Interface with Address $7A
PIN ASSIGNMENT
MC34063
Description
The MC34063A Series is a monolithic control
circuit containing the primary functions required for DC–to–DC converters.
These devices consist of an internal temperature compensated reference,
comparator, controlled duty cycle oscillator with an active current limit
circuit, driver and high current output switch. This series was specifically
designed to be incorporated in Step–Down and Step–Up and Voltage–Inverting applications
with a minimum number of external components
FEATURES
- Operation from 3.0 V to 40 V Input
- Low Standby Current
- Current Limiting
- Output Switch Current to 1.5 A
- Output Voltage Adjustable
- Frequency Operation to 100 kHz
- Precision 2% Reference
PIN CONNECTIONS
MSP 3400G [MULTI STANDARD SOUND PROCESSOR]
The MSP 34x0G family of
single-chip Multistandard Sound Processors covers the sound processing of all analog
TV-Standards worldwide, as well as the NICAM digital sound standards. The full
TV sound processing, starting with analog sound IF signal-in, down to processed
analog AF-out, is performed on a single chip. Figure shows a simplified
functional block diagram of the MSP 34x0G.
This new generation of TV sound processing ICs now includes versions for
processing the multichannel television sound (MTS) signal conforming to the
standard recommended by the Broadcast Television Systems Committee (BTSC). The
DBX noise reduction, or alternatively, MICRONAS Noise Reduction
(MNR) is performed alignment
free. Other processed standards are the Japanese FM-FM multiplex standard
(EIA-J) and the FM Stereo Radio standard. Current ICs have to perform
adjustment procedures in order to achieve good stereo separation for BTSC and
EIA-J. The MSP 34x0G has optimum stereo performance without any adjustments.
All MSP 34x0G versions are
pin and software downward compatible to the MSP 34x0D. The MSP 34x0G further
simplifies controlling software. Standard selection requires a single I²C
transmission only. The MSP 34x0G has
built-in automatic functions: The IC is able to detect the actual sound
standard automatically (Automatic Standard Detection). Furthermore, pilot
levels and identification signals can be evaluated internally with subsequent
switching between mono/stereo/bilingual; no I²C interaction is
necessary (Automatic Sound
Selection).
SOURCE SELECT
I2S bus interface consists of
five pins:
- I2S_DA_IN1, I2S_DA_IN2: For input, four channels (two channels per line, 2*16 bits) per sampling cycle (32 kHz) are transmitted.
- I2S_DA_OUT: For output, two channels (2*16 bits) per sampling cycle (32 kHz) are transmitted.
- I2S_CL: Gives the timing for the transmission of I2S serial data (1.024 MHz).
- I2S_WS: The I2S_WS word strobe line defines the left and right sample.
Features
- Standard Selection with single I2C transmission
- Automatic Standard Detection of terrestrial TV standards
- Automatic Sound Selection (mono/stereo/bilingual), new registers MODUS, STATUS
- Two selectable sound IF (SIF) inputs
- Automatic Carrier Mute function
- Interrupt output programmable (indicating status change)
- Loudspeaker / Headphone channel with volume, balance, bass, treble, loudness
- AVC: Automatic Volume Correction
- Subwoofer output with programmable low-pass and complementary high-pass filter
- 5-band graphic equalizer for loudspeaker channel
- Spatial effect for loudspeaker channel
- Four Stereo SCART (line) inputs, one Mono input; two Stereo SCART outputs
- Complete SCART in/out switching matrix
- Two I2S inputs; one I2S output
- Dolby Pro Logic with DPL 351xA coprocessor
- All analog FM-Stereo A2 and satellite standards; AM-SECAM L standard
- Simultaneous demodulation of (very) high-deviation FM-Mono and NICAM
- Adaptive deemphasis for satellite (Wegener-Panda, acc. to ASTRA specification)
- ASTRA Digital Radio (ADR) together with DRP 3510A
- All NICAM standards
- Korean FM-Stereo A2 standard
