Item Tag: coolbaby

Differences Between PCM2900B and PCM2900 ABSTRACT This letter summarizes the specification differences between the PCM2900B and the PCM2900 stereo audio codec devices from Texas Instruments. TI recommends that customers migrate to the PCM2900B in place of the PCM2900. and PCM2900 Table 1 lists the differences between the PCM2900B and PCM2900 devices in terms of the descriptors reported to the PC during the plug-in sequence and the electrical specifications stated in the product data sheet. Table 1. PCM2900B and PCM2900 Differences Parameter PCM2900BDB PCM2900E USB compliance(1) 0x0200 (USB2.0) 0x0110 (USB1.1) Product ID(1) 0x29B0 0x2900 Alternate setting of Interface #01(1) #00/01/02/03/04 #00/01/02/03/04/05/06 Supply current during Suspend Mode(2) 250 mA (typ) 210 mA (typ) Power dissipation during Suspend Mode(2) 1.25 mW (typ) 1.05 mW (typ) Min 3.1 V 3.25 V Internal power-supply voltage(2) Typ 3.3 V 3.35 V (1) Descriptor and specification change. (2) Specification change only. This section explains the changes to the PCM2900B from the PCM2900 that result in the differences summarized in Section 1. 1. Change model name and applicable version in USB compliance. Change the model name from PCM2900E to PCM2900BDB, and change the applicable version USB compliance to USB2.0 from USB1.1. 2. Bug fix (three bugs listed in the data sheet errata document, SLAZ036A). The bugs fixed are: a. Fix of over-/undersized packet sending in recording. b. Fix of 1-kHz noise at 16-kHz/16-bits/Mono mode in recording. c. Fix of one-sample interchannel phase error in recording and playback. 3. Remove 8-bit Offset Binary format from playback data format. Remove Alternate Setting #05 and #06 from Interface#01 for playback. That is, the PCM2900B removes 8-bit Offset Binary format from playback data format in available results. 4. Change the output voltage of the internal regulators. Change the output voltage of the internal regulators to improve the temperature dependency of power dissipation during suspend mode. On Dec-30-17 at 01:23:13 PST, seller added the following information:On Feb-07-20 at 10:55:25 PST, seller added the following information: