PT2256 Princeton Technology Corp., PT2256 Datasheet
PT2256
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PT2256 Summary of contents
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... Electronic Volume Controller IC DESCRIPTION PT2256 is an electronic volume controller IC utilizing CMOS Technology specially designed for use on audio equipment. It has 2 built-in channels making it ideally suitable for mono and stereo sound applications. PT2256 provides the Loudness Function, a wide frequency response range and a very low total harmonic distortion, thereby guaranteeing a highly effective and reliable performance ...
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... Electronic Volume Controller IC BLOCK DIAGRAM PT2256 V1 D/A Con ve rte Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 August, 2006 ...
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... Electronic Volume Controller IC PIN CONFIGURATION PT2256 V1.7 16 VSS 1 OUT1 IN1 3 13 LT1 4 AGND / /DN 7 OSC 8 9 PT2256 - 3 - Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com VDD OUT2 IN2 LT2 AGND DCO /INH /RST August, 2006 PT2256 ...
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... O LT2 O IN2 I OUT2 O VDD - PT2256 V1.7 Description Negative power supply Volume output pin 1 Volume input pin 1 Tap output pin 1 for loudness function Analog ground pins 1 Volume up control input pin. The 1 step/1 push volume is controlled by pressing the up Key. If the key has been pushed continuously increase ...
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... Electronic Volume Controller IC FUNCTION DESCRIPTION ATTENUATION The PT2256 volume control circuit consists of ladder resistors and analog switches. The Tap for loudness function is connected to the Step 10 (-20dB). When the (3.9KΩ) resistor is connected between LT and AGND pins, the attenuation is given in table below. ...
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... Electronic Volume Controller IC DC OUTPUT FOR VOLUME LEVEL The DC Output for the Volume Level Meter is internally connected to the D/A Converter. PT2256 has 8 stages of output voltage with each stage corresponding to a particular volume level. Please refer to the table below: Step 0-3 4-7 ...
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... Electronic Volume Controller IC INITIALIZATION WHEN POWER ON PT2256 has an auto-initialization function during the Power On period. When Power is turned ON, the volume level is set to the initial value of - setting the RST pin to “L” level. Please refer to the diagram below BACK UP WHEN POWER OFF When the /INH Pin is set at “L” Level, all input and output pins are disabled and the current consumption is reduced to the minimum ...
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... Electronic Volume Controller IC LOUDNESS FREQUENCY RESPONSE The figure below shows the Loudness Frequency Response Diagram. PT2256 V1 Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 0dB -6dB -12dB -42dB - 54dB - 66dB - 78dB ∞ August, 2006 ...
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... Electronic Volume Controller IC ABSOLUTE MAXIMUM RATINGS (Unless otherwise stated, Ta=25℃) Parameter Supply voltage Input voltage Power dissipation Operating temperature Storage temperature PT2256 V1.7 Symbol Rating VDD -0 VIN -0.3 to VDD+0.3 PD 300 Topr -40 to +85 Tstg -65 ~ +150 - 9 - Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 ...
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... Total harmonic distortion Maximum attenuation ATTMAX Cross noise Output noise OSC frequency Output resistance ROUT Maximum input amplitude PT2256 V1.7 Test Condition VDD IDD No load, FOSC=20Hz ISB OSC=0V, /INH=0V VOD /INH Pin=0V IOD /UP, /DN, /RST VIH /INH /UP, /DN, /RST ...
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... Likewise, if the Fosc value is small, the volume control change is slow suggested that Rx=33K, Cx=2.2µF. The table for the Rx, Cx and Fosc values are given below: Rx 33K 1.0µF 33K 2.2µF 33K 10µF PT2256 V1.7 VDD VSS OUT1 OUT2 IN1 IN2 3.9K LT1 LT2 ...
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... Likewise, if the Fosc value is small, the volume control change is slow suggested that Rx=33K, Cx=2.2µF. The table for the Rx, Cx and Fosc values are given below 33K 1.0µF 33K 2.2µF 33K 10µF PT2256 V1.7 VDD VSS OUT1 OUT2 IN1 IN2 820Ω 8.2nF LT1 LT2 820Ω ...
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... Electronic Volume Controller IC ORDER INFORMATION Part Number PT2256 PT2256-S PT2256-SN PT2256 (L) PT2256-S (L) PT2256-SN (L) Notes: 1. (L), (C) or (S) = Lead Free. 2. The Lead Free mark is put in front of the date code. PT2256 V1.7 Package 16 Pins, DIP, 300mil 16 Pins, SOP, 300mil 16 Pins, SOP, 150mil 16 Pins, DIP, 300mil ...
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... Electronic Volume Controller IC PACKAGE INFORMATION 16PINS, DIP, 300MIL PT2256 V1 Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 August, 2006 ...
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... Distance between leads including Dambar protrusions to be 0.005 inch minimum. 10. Datum plane -H- coincident with the bottom of lead, where lead exits body. 11. Refer to JEDEC MS-001 Variation AB. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION. PT2256 V1.7 Min. Nom 0.015 A2 ...
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... Electronic Volume Controller IC 16PINS, SOPM, 300MIL N INDEX AREA -A- D -e- B .25 (.010 PT2256 V1.7 H .25 (.010 -B- SEATING PLANE A -C- ∞ A1 .10 (.004) Symbol Min. A 2.35 A1 0.10 B 0.33 C 0.23 D 10.10 E 7.40 e 1.27 BSC H 10.00 h 0.25 L 0.40 o α Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com Max 2 ...
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... The lead width “B” as measured 0.36 mm (0.014 in) or greater above the seating plane, shall not exceed a maximum value of 0.61 mm (0.24 in). 8. Controlling dimension : MILLIMETER. 9. Refer to JEDEC MS-013, Variation AA. JEDEC is the trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION. PT2256 V1 Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 ...
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... Electronic Volume Controller IC 16 PINS, SOP, 150MIL PT2256 V1 Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 August, 2006 ...
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... Electronic Volume Controller IC PT2256 V1 Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 August, 2006 ...
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... This chamfer feature is optional not present, then a pin 1 identifier must be located within the index area indicated. 10. Refer to JEDEC MS-012, Variation AC. JEDEC is the registered trademark of JEDEC SOLID STATE TECHNOLOGY ASSOCIATION. PT2256 V1.7 Min. Typ. 1. ...
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... PT2256 v1.3 Approval #: 000902 Request #: Request No.: 040708 PT2256V1.4 Approval #: 040705 Modification #: 040705 Request No.: 040811 PT2256 V1.5 Approval #: 040806 Modification #: 040805 Approval #: 060316 PT2256 V1.6 Modification #: 060315 Approval #: 060811 PT2256 V1.7 Modification #: 060806 - 21 - Tel:886-2-66296288 Fax:886-2-29174598 URL:http://www.princeton.com.tw www.DataSheet4U.com PT2256 Remarks August, 2006 ...