DatasheeDatasheett D/A Converters Standard 8bit 4ch 6ch Type BH2227FV BH2228FV General Description Key Specifications The BH2227FV and BH2228FV ICs are 8bit R-2R-type Power Source Voltage Range: 2.7V to 5.5V D/A converters with 4 and 6 channels, respectively. Current Consumption: 0.8mA(Typ) Optimized circuitry allows two output voltages to be Differential Non Linearity Error: 1.0LSB supplied (3V/5V). Furthermore, the built-in RESET Integral non Linearity Error: 1.5LSB function ensures that the output voltage at all channels Output current Performance: 1.0mA is LOW during power up. A broad power supply voltage Settling Time: 100s(Min) range is available (2.7V to 5.5V), providing design Data Transfer Frequency: 10MHz(Max) flexibility. Action Temperature Range: -20C to +85C Features Suitable for 2 independent power sources (3V/5V) Package W(Typ) x D(Typ) x H(Max) Built-in RESET function High speed output response characteristics 3-line serial interface Applications DVCs, DSCs, DVDs, CD-Rs, CD-RWs SSOP-B14 5.00mm x 6.40mm x 1.35mm Lineup Number of channels Input method Data latch method Package Orderable Part Number 4ch BH2227FV-E2 CMOS CSB method SSOP-B14 Reel of 2500 6ch BH2228FV-E2 Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0M2M0GZ15080-1-2 2015 ROHM Co., Ltd. All rights reserved. 1/14 TSZ2211114001 06.Nov.2015 Rev.001 BH2227FV BH2228FV Pin Descriptions and Block Diagrams (BH2227FV) TOP VIEW Terminal Terminal Name Function 1 AO1 VFS Analog output terminal VDD R2R VSS AO1 1 REG 14 2 AO2 V VFS 3 TESTMONI1 F Test terminal VDD R2R VFS AO2 2 13 REG S (OPEN at normal use) 4 TESTMONI2 TEST 5 AO3 VDD DI 12 3 Analog output terminal MONI1 Serial 6 AO4 Interface TEST 7 NC CLK 11 4 Internally not connected yet MONI2 8 NC VDD VDD VDD AO3 5 R2R CSB REG 10 Power source terminal Power ON V (AO3, 4 full scale voltage 9 VDD VDD Reset D VDD use in common) VDD AO4 6 R2R 9 REG D Chip select signal input terminal 10 CSB NC NC 7 8 11 CLK Serial clock input terminal 12 DI Serial data input terminal AO1,2 full scale Figure 1. BH2227FV 13 VFS Voltage setting terminal Ground terminal 14 VSS (BH2228FV) TOP VIEW Terminal Terminal Name Function 1 AO1 VFS VDD 2 AO2 R2R REG AO1 1 14 VSS V 3 AO3 VFS VFS F Analog output terminal VDD 2 R2R REG 13 4 AO4 AO2 VFS S 5 AO5 VFS VDD VDD 12 3 R2R REG DI AO3 6 AO6 Serial VDD 7 NC VDD Interface 11 CLK R2R REG AO4 4 Internally not connected yet 8 NC VDD VDD VDD Power source terminal AO5 5 R2R REG 10 CSB Power ON (AO4 to AO6 full scale voltage use V 9 VDD VDD VDD Reset D in common) VDD 6 R2R REG 9 AO6 VDD D Chip select signal input terminal 10 CSB 11 CLK Serial clock input terminal 7 NC 8 NC Serial data input terminal 12 DI AO1,2,3 full scale 13 VFS Figure 2. BH2228FV Voltage setting terminal Ground terminal 14 VSS www.rohm.com TSZ02201-0M2M0GZ15080-1-2 2015 ROHM Co., Ltd. All rights reserved. 2/14 TSZ2211115001 06.Nov.2015 Rev.001