Document
Preliminary Datasheet
M62342P/FP, M62343P/FP
8-Bit D/A Converter (Buffered)
R03DS0040EJ0500 Rev.5.00
Jun 03, 2011
Description
The M62342 and M62343 are CMOS-structure semiconductor integrated circuits incorporating two or three 8-bit D/A converter channels with output buffer op-amps.
Serial data transfer type input can easily be used through a combination of three lines: DI, CLK, and LD.
Outputs incorporate buffer op-amps that have a drive capacity of 1 mA or above for both sink and source, and can operate over the entire voltage range from almost ground to VCC (0 to 5 V), making peripheral elements unnecessary and enabling configuration of a system with few component parts.
Features
Data transfer format 10-bit serial data input type
Output buffer op-amps Operable over entire voltage range from almost ground to VCC (0 to 5 V)
High output current capacity ±1 mA or higher
Application
Signal gain setting and automatic adjustment in CTV, and display monitors, conversion from digital data to analog data in consumer and industrial products
Block Diagram
VCC 4
LD CLK DI 8 76
10-bit shift register
8 Channel decoder
GND 5
8-bit latch
8-bit upper segment R-2R
+−
8-bit latch
8-bit upper segment R-2R
+−
8-bit latch
8-bit upper segment R-2R
← M62343 only
+−
123
AO1
AO2
AO3
(NC in M62342)
R03DS0040EJ0500 Rev.5.00 Jun 03, 2011
Page 1 of 8
M62342P/FP, M62343P/FP
Pin Arrangement
M62342P/FP M62343P/FP
AO1 AO2 AO3* VCC
1 2 3 4
8 LD 7 CLK 6 DI 5 GND
(Top view)
Note:
Outline: PRDP0008AA-A (8P4) [P] (not recommend for new design) PRSP0008DE-C [FP] (recommend) PRSP0008DA-A (8P2S-A) [FP] (not recommend for new design)
Pin 3 of the M62342 is a NC pin.
Preliminary
Pin Description
Pin No. 6 7
Symbol DI CLK
8 LD
1 AO1 2 AO2 3 AO3
(M62343 only) 4 VCC 5 GND
Function Serial data input pin. Inputs serial data with a 10-bit data length. Serial clock input pin. Input signal from DI pin is input to 10-bit shift register at rise of shift clock. Load pin. When “H” level is input to LD pin, value in 10-bit shift register is loaded into decoder and D/A output register. 8-bit resolution D/A converter output pins (After power-on, all channels are reset and DAC data 00h is output.)
Power supply voltage pin GND pin
R03DS0040EJ0500 Rev.5.00 Jun 03, 2011
Page 2 of 8
M62342P/FP, M62343P/FP
Absolute Maximum Ratings
Item Power supply voltage Input voltage Output voltage Internal power consumption Operating ambient temperature Storage temperature
VCC Vin VO Pd Topr Tstg
Symbol
Rated Value –0.3 to 7.0
–0.3 to VCC+0.3 7.0 –0.3 to VCC+0.3 7.0
417 (P) / 272 (FP) –20 to +85 –40 to +125
Preliminary
Unit V V V
mW °C °C
Electrical Characteristics
Item Power supply voltage Power supply current
Symbol VCC ICC
Input leakage current Input voltage “L” Input voltage “H” Buffer amp output voltage range
Buffer amp output drive range Differential nonlinearity error Nonlinearity error Zero point error Full-scale error Oscillation limit output capacitance B.