数据搜索系统,热门电子元器件搜索 |
|
TPA6130A2RTJR 数据表(PDF) 16 Page - Texas Instruments |
|
|
TPA6130A2RTJR 数据表(HTML) 16 Page - Texas Instruments |
16 / 39 page TPA6130A2 SLOS488F – NOVEMBER 2006 – REVISED MARCH 2015 www.ti.com 8.4 Device Functional Modes The TPA6130A2 supports numerous modes of operation. 8.4.1 Hardware Shutdown Hardware shutdown occurs when the SD pin is set to logic 0. The device is completely shutdown in this mode, drawing minimal current. This mode overrides all other modes. All information programmed into the registers is lost. When the device starts up again, the registers go back to their default state. 8.4.2 Software Shutdown Software shutdown is set by placing a logic 1 in register 1, bit 0. That is the SWS bit. The software shutdown places the device in a low power state, although the current draw is higher than that of hardware shutdown (see the Electrical Characteristics Table for values). Engaging software shutdown turns off the charge pump and disables the outputs. The device is awakened by placing a logic 0 in the SWS bit. Note that when the device is in SWS mode, register 1, bits 7 and 6 will be cleared to reflect the disabled state of the amplifier. All other registers maintain their values. Re-enable the amplifier by placing a logic 0 in the SWS bit. It is necessary to reset the entire register because a full word must be used when writing just one bit. 8.4.3 Charge Pump Enabled, HP Amplifiers Disabled The output amplifiers of the TPA6130A2 are enabled by placing a logic 1 in register 1, bits 6 and 7. Place a logic 0 in register 1, bits 6 and 7 to disable the output amplifiers. The left and right outputs can be enabled and disabled individually. When the output amplifiers are disabled, the charge-pump remains on. 8.4.4 Hi-Z State HiZ is enabled by placing a logic 1 in register 3, bits 0 and 1. Place a logic 0 in register 3, bits 0 and 1 to disable the HiZ state of the outputs. The left and right outputs can be placed into a HiZ state individually. The HiZ state puts the outputs into a state of high impedance. Use this configuration when the outputs of the TPA6130A2 share traces with other devices whose outputs may be active. Note that to use the HiZ mode, the TPA6130A2 MUST be active (not in SWS or hardware shutdown). Furthermore, the output amplifiers must NOT be enabled. 8.4.5 Stereo Headphone Drive The device is in this mode when the MODE bits in register 1 are 00 and both headphone enable bits are enabled. The two amplifier channels operate independently. This mode is appropriate for stereo playback. 8.4.6 Dual Mono Headphone Drive The device is in this mode when the MODE bits in register 1 are 01 and both headphone enable bits are enabled. The left channel is the active input. It is amplified and distributed to both the left and right headphone outputs. 8.4.7 Bridge-Tied Load Receiver Drive The device is in this mode when the MODE bits in register 1 are 10 and both headphone enable bits are enabled. In this mode, the device will take the left channel input and drive a single load connected between HPLEFT and HPRIGHT in a bridge-tied fashion. The minimum load for bridge-tied mode is the same as for stereo mode (see table entitled "Absolute Maximum Ratings"). 8.4.8 Default Mode The TPA6130A2 starts up with the following conditions: • SWS = Off, CHARGE PUMP = On • HP ENABLES = Off • HiZ = Off • MODE = Stereo • HP MUTES = On, VOLUME = -59.5 dB, 16 Submit Documentation Feedback Copyright © 2006–2015, Texas Instruments Incorporated Product Folder Links: TPA6130A2 |
类似零件编号 - TPA6130A2RTJR |
|
类似说明 - TPA6130A2RTJR |
|
|
链接网址 |
隐私政策 |
ALLDATASHEETCN.COM |
ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |