 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| D/A Converter Series for Electronic Adjustments Standard 8bit 8ch Type D/A Converters BH2226FV,BH2226F No.09052EBT05 Description The BH2226FV,BH2226F is an 8bit R-2R-type D/A converter with 8 channels. The D/A converter output and serial / parallel conversion function can be switched with one command, and a built-in RESET function ensures that the output voltage at all channels is Low during power up. A broad power supply voltage range (2.7V-5.5V) is available, providing design flexibility. Features 1) Integrated expansion port function 2) Built-in RESET function 3) High speed output response characteristics 4) 3-line-type serial interface 5) Broad power supply voltage range: 2.7V-5.5V Applications DVCs, DSCs, DVDs, CD-Rs, CD-RWs Line up matrix Parameter Power source voltage range Number of channels Current consumption Differential non linearity error Integral non linearity error Output current performance Settling time Data transfer frequency Input format Data latch method Package BH2226FV 2.7~5.5V 8ch 1.3 mA 1.0LSB 1.5LSB 1.0mA 100s 10MHz CMOS CSB method SSOP-B16 BH2226F 2.7~5.5V 8ch 1.3 mA 1.0LSB 1.5LSB 1.0mA 100s 10MHz CMOS CSB method SOP16 www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 1/9 2009.07 - Rev.B BH2226FV,BH2226F Absolute Maximum Ratings Parameter Power source voltage Terminal voltage Symbol VCC VIN TSTG PD Limits -0.3~7.0 -0.3~VCC -55~125 450 *1 Technical Note Unit V V mW mW (Ta=25) Remarks BH2226FV BH2226F Storage temperature range Power dissipation 500*2 *1 Derated at 4.5mW/ at Ta>25 *2 Derated at 5.0mW/ at Ta>25 *3 Please note that this product is not robust against radiation. Recommended Operating Conditions (Ta=25) Parameter VCC power source voltage Terminal input voltage range Analog output current Operating temperature range Serial clock frequency D/A output limit load capacity Symbol VCC VIN IO TOPR FCLK CL MIN. 2.7 0 -1.0 -20 Limits TYP. 1.0 MAX. 5.5 VCC 1.0 85 10.0 0.1 Unit V V mA MHz F Remarks - Electrical Characteristics (Unless otherwise specified, VCC=3.0V, RL=OPEN, CL=0pF, Ta=25) Limits Parameter Symbol MIN. TYP. MAX. 2.5 20 0.6 VCC 10 0.4 0.1 0.3 VCC VCC 1.0 1.5 - Unit Conditions mA A V V A V V V V V V LSB LSB s V CLK=1MHz, 80H setting At power down setting VCC=5V VCC=5V IOH=2.5mA IOL=0.4mA 00H setting, at no load 00H setting, IOH=1.0mA FFH setting, at no load FFH setting, IOL=1.0mA Input code 02H~FDH Input code 02H~FDH VCC=02.7V www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 2/9 2009.07 - Rev.B BH2226FV,BH2226F Timing Chart Unless otherwise specified, VCC=3.0V, RL=OPEN, CL=0pF, Ta=25 Limits Parameter Symbol MIN. TYP. MAX. CLK L level time tCLKL 50 CLK H level time tCLKH 50 DI setup time tsDI 20 DI hold time thDI 40 Parallel input setup time tsPI 20 Parallel input hold time thPI 40 CSB setup time tsCSB 50 CSB hold time thCSB 50 CSB H level time tCSBH 50 D/A output settling time tOUT 100 Parallel output delay time tpOUT 600 Serial output delay time tsOUT 350 Technical Note Unit ns ns ns ns ns ns ns ns ns s ns ns Conditions CL=50pF,RL=10k CL=50pF,RL=10k CL=50pF,RL=10k Fig.1 www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 3/9 2009.07 - Rev.B BH2226FV,BH2226F Terminal Description / Block Diagrams (BH2226FV,BH2226F) Terminal No. Function name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DA1 DA2 DA3 DA4 DA5 DA6 DA7 DA8 VCC RESETB TEST CSB CLK DI SO GND Technical Note 1 2 Serial 3 Interface 4 5 16 15 14 13 12 11 10 9 Analog output terminal / I/O input output terminal Power source terminal Reset terminal Test terminal (normal connected to GND) Chip select signal input terminal Serial clock input terminal Serial data input terminal Serial data output terminal Ground terminal 6 7 8 PowerOn Reset Fig.2 Input-Output equivalence circuits Terminal DA1 DA2 DA3 DA4 DA5 DA6 DA7 DA8 Equivalence Circuit Terminal DI CLK CSB TEST RESETB Equivalence Circuit SO Fig.3 Input-Output equivalence circuits www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 4/9 2009.07 - Rev.B BH2226FV,BH2226F Technical Note Operation Description Command Transmission The Control command consists of 3 lines of 12bit serial input data (MSB first). DI data is read at the rising edge of the CLK, and becomes valid in the CSB Low area (before the CSB rise for 12bit data). CSB 12 CLK 11 10 9 8 7 6 5 4 3 2 1 DI X D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 X Fig.4 Data Settings D0 0 1 0 1 0 0 1 (Note) D1 0 0 1 1 0 1 1 D2 0 0 0 0 1 1 1 D3 0 0 0 0 0 ~ 1 1 1 1 1 1 1 1 1 1 D4 0 0 0 0 0 D5 0 0 0 0 0 D6 0 0 0 0 0 D7 0 0 0 0 0 Setting At D/A settingGND At D/A setting(VCC-GND)/256x1 At D/A setting(VCC-GND)/256 x 2 At D/A setting(VCC-GND)/256 x 3 At D/A setting(VCC-GND)/256 x 4 ~ At D/A setting(VCC-GND)/256 x 254 At D/A setting(VCC-GND)/256 x 255 Default D[7:0]=00h Channel Settings D8 D9 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 D10 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D11 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Setting Power down setting (default) DA1 DA2 DA3 DA4 DA5 DA6 DA7 DA8 Power down release Inconsequential Inconsequential I/O D/A select I/O serialParallel I/O parallelSerial I/O status setting Input / Output D/A Selection settings Each channel can be set for either I/O port or D/A converter output. 0: I/O mode (When I/O mode is selected, set the status as well.) 1: D/A mode (Set the I/O status to output mode.) D0 D1 D2 D3 D4 D5 D6 D7 Description Corresponding terminals for I/O or DA1 DA2 DA3 DA4 DA5 DA6 DA7 DA8 D/A selection I/O Status Setting : Set the status of the I/O input output terminal by D0 ~ D7. 0: input mode (High-Z status) 1: output mode D0 D1 D2 D3 D4 D5 D6 D7 DA1 DA2 DA3 DA4 DA5 DA6 DA7 DA8 Description Corresponding terminals for status setting www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 5/9 2009.07 - Rev.B BH2226FV,BH2226F Command Transmission Procedures Carry out the following after power on and just after external reset: (1) Power Down Release (2) I/O D/A Select (3) I/O Status Set Technical Note Arbitrary setting Power down release I/O DAC select I/O status setting Fig.5 Note: When power is started, the power on reset is activated and the internal register initialized. However, as shown in the figure above, in area (a), if CSB cannot be made High and noise is introduced in the control line an error may occur when setting during the rising CSB signal. In such a case, set the external RESETB terminal to Low and reset when CSB = High. Parallel - Serial Conversion Parallel data {DA[8:1]} is taken in at the first CSB falling edge after setting the parallel serial command. The data is then outputted in synch with the falling edge of the CLK in the next CSB = Low area, and output from 4CLK. However, please note that the SCLK falling edge that occurs from CSB fall to the first SCLK rising edge is not counted. Parallel data taking in PS conversion command Fig.6 Serial - Parallel Conversion DI serial data is taken in at the rising edge of the CLK. The data is then output from the DA[8:1] terminal just after the CSB rising edge. During that time the SO terminal output becomes undetermined (just previous address setting + data output). Parallel data output Fig.7 D/A Converter Output Setting (Fig. 7) DI serial data is taken in at the rising edge of the clock. The D/A converter output is output from the DA[8:1] terminal just after the rising edge of the CSB. During that time, the SO terminal output becomes undetermined (just previous address setting + data output). DAC output DA1 output Fig.8 www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 6/9 2009.07 - Rev.B BH2226FV,BH2226F Electrical Characteristics Curves 2.0 16.0 3.0 Technical Note CIRCUIT CURRENT:ICC[mA] CIRCUIT CURRENT:ICCPD[uA] OUTPUT VOLTAGE:Vo[V] 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0 1 2 3 4 5 6 -20 85 25 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 0 1 2 3 4 5 6 85 25 -20 2.5 2.0 1.5 1.0 0.5 0.0 0 VCC=3.0V 64 128 192 256 SUPPLY VOLTAGE:VCC[V] SUPPLY VOLTAGE:VCC[V] INPUT CODE:[dec] Fig.9 Action current consumption Fig.10 Consumption current at power down Fig.11 Output voltage characteristic 0.4 0.3 0.2 VCC=3.0V 1.0 0.8 0.6 0.4 0.2 0.0 -0.2 -0.4 -0.6 VCC=3.0V 0.25 0.20 DNL [LSB] INL [LSB] 0.1 0.0 -0.1 -0.2 -0.3 -0.4 0 64 128 192 256 DNL [LSB] 0.15 0.10 0.05 -0.8 -1.0 0 64 128 192 256 0.00 0.0 1.0 2.0 3.0 4.0 5.0 6.0 INPUT CODE [dec] INPUT CODE [dec] SUPPLY VOLTAGE:VCC[V] Fig.12 Differential non linearity error Fig.13 Integral non linearity error Fig.14 Power source voltage vs. differential non linearity error FULL SCALE VOLTAGE:FS[mV] 0 -20 -40 -60 -80 0.40 0.35 ZERO SCALE VOLTAGE:ZS[mV] 0.45 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 85 25 -20 IL=1.0mA IL=1.0mA INL [LSB] 0.30 0.25 0.20 0.15 0.10 0.05 0.00 0.0 1.0 2.0 3.0 4.0 5.0 6.0 -20 -100 25 -120 -140 0.0 1.0 2.0 3.0 4.0 5.0 6.0 85 SUPPLY VOLTAGE:VCC[V] SUPPLY VOLTAGE:VCC[V] SUPPLY VOLTAGE:VCC[V] Fig.15 Power source voltage vs. integral non linearity error Fig.16 Output zero scale voltage Fig.17 Output full scale voltage 3.00 100 3.0 2.50 2.00 1.50 1.00 0.50 0.00 -50 -25 0 25 50 75 100 INPUT VOLTAGE:VIL,VIH[V] RESET VOLTAGE:VPOR[V] SETTLING TIME:tOUT[us] 80 -20 2.5 2.0 1.5 1.0 0.5 0.0 VIH VIL 60 25 85 40 20 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 TEMPARATURE:Ta[] SUPPLY VOLTAGE:VCC[V] SUPPLY VOLTAGE:VCC[V] Fig.18 Reset release voltage Fig.19 Settling time Fig.20 Input voltage www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 7/9 2009.07 - Rev.B BH2226FV,BH2226F Technical Note Operation Notes (1) Numbers and data in entries are representative design values and are not guaranteed values of the items. (2) Although we are confident in recommending the sample application circuits, carefully check their characteristics further when using them. When modifying externally attached component constants before use, determine them so that they have sufficient margins by taking into account variations in externally attached components and the Rohm LSI, not only for static characteristics but also including transient characteristics. (3) Absolute Maximum Ratings Operating or testing the device over the maximum specifications may damage the part itself as well as peripheral components. Therefore, please ensure that the specifications are not exceeded. (4) GND potential Ensure that the GND terminal is at the lowest potential under all operating conditions. (5) Thermal design Use a thermal design that allows for a sufficient margin regarding power dissipation (Pd) under actual operating conditions. (6) Terminal shorts and mis-mounting Incorrect orientation or misalignment of the IC when mounting to the PCB may damage part. Short-circuits caused by the introduction of foreign matter between the output terminals or across the output and power supply or GND may also result in destruction. (7) Operation in a strong magnetic field Operation in a strong electromagnetic field may cause malfunction. (8) Reset Function The power on reset circuit, which initializes internal settings, may malfunction during abrupt power ons. Therefore, set the time constant so as to satisfy the power source rise time. (9) After power on and after the external reset is in power down status, DA1 ~ DA8 will be in input mode (all terminals at High-Z). (10) In the case of condition changes in the DA1 ~ DA8 terminals (i.e. changes from D/A mode to serial-parallel mode, from serial-parallel mode to parallel-serial mode, excluding D/A data and I/O data updates), change both analog and digital settings of High-Z. (11) Connect the RESETB terminal to VCC and set it to High, making sure that it becomes Low only at reset. (12) Initialization of the serial interface shift register is carried out only by power on reset, or external reset, and is not reset by CSB = High. Therefore, when a specified clock number (12CLK) is not attained during command setting, interrupting processing, transfer regular data once again. (13) The power down function restricts the consumption current in the internal analog circuit. Set it by command. At power down, for channels set to D/A mode, "I/O D/A selection" is changed from "D/A mode" to "I/O mode". Therefore, when the "I/O status setting" of the channel is in input mode, the terminal is in High-Z status and the input becomes unstable and unnecessary current flows. Set the I/O status setting of channel to be in output mode, or set the terminal using resistance. (14) When shifting from PIO use status to D/A use status, a wait time in order to ensure D/A output stability is necessary. Therefore wait for a maximum of 1ms after the "I/O D/A select" command is input. If wait time is problematic, set the D/A setting code to 80hex and change it to the specified code setting. www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 8/9 2009.07 - Rev.B BH2226FV,BH2226F Ordering part number Technical Note B H 2 Part No. 2 2 6 F V - E 2 Part No. Package FV: SSOP-B16 F: SOP16 Packaging and forming specification E2: Embossed tape and reel (SSOP-B16/SOP16) SOP16 10 0.2 (MAX 10.35 include BURR) 16 9 Tape Quantity Direction of feed 0.3MIN Embossed carrier tape 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold 6.20.3 4.40.2 ( reel on the left hand and you pull out the tape on the right hand ) 1 8 0.15 0.1 1.50.1 0.11 1.27 0.4 0.1 0.1 1pin (Unit : mm) Direction of feed Reel Order quantity needs to be multiple of the minimum quantity. SSOP-B16 5.00.2 16 9 Tape Quantity Embossed carrier tape 2500pcs E2 The direction is the 1pin of product is at the upper left when you hold 6.40.3 4.40.2 0.3Min. Direction of feed ( reel on the left hand and you pull out the tape on the right hand ) 1 8 0.150.1 1.150.1 0.10 0.1 0.65 0.220.1 1pin (Unit : mm) Direction of feed Reel Order quantity needs to be multiple of the minimum quantity. www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. 9/9 2009.07 - Rev.B Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us. ROHM Customer Support System http://www.rohm.com/contact/ www.rohm.com (c) 2009 ROHM Co., Ltd. All rights reserved. R0039A |
Price & Availability of BH2226FV09
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |