| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact | |
| CXD8985AQ | SONY | 123 |
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| CXD8985AQ | SONY | QFP大 | 02+ | 60 |
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| CXD8985AQ | SONY | 01+ | 350 |
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| CXD8985AQ | SONY | 01+ | 350 |
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CXD8985AQ Datasheet Device Address (A2-AO) The Address inputs are used to set the least significant 3 bits of the 8-bit 2-wire interface slave address. A match in the slave address serial data stream must be made with the Address input pins in order to initiate communication with the X9455. A maximum of 8 devices may occupy the 2-wire serial bus. Chip Select (CS) When the CS pin is low, increment or decrement operations are possible using the SCL and U/D pins. The 2-wire interface is disabled at this time. When CS is high, the 2-wire interface is enabled. Up or Down Control (U/D) The U/D input pin is held HIGH during increment operations and held LOW during decrement operations. CXD8985AQ Price mobile phones. It can be used for both TDMA/AMPS or CDMA/AMPS systems. The MGCT04 is compatible with baseband and mixed signal interface circuits from Zarlink Semiconductor and other manufacturers. CXD8985AQ on stock For the synchronous MOSFET Q2, Rdscon; is an im- portant characteristic; however, once again the im- portance of gate charge must not be overlooked since it impacts three critical areas. Under light load the MOSFET must still be turned on and off by the con- trol lC so the gate drive losses become much more significant. Secondly, the output charge Qu;; and re- u oss verse recovery charge Qrr both generate losses that u rr are transfered to Ql and increase the dissipation in that device. Thirdly, gate charge will impact the MOSFETs' susceptibility to Cdv/dt turn on. The drain of Q2 is connected to the switching node of the converter and therefore sees transitions be- tween ground and V .As Ql turns on and off there is in a rate of change of drain voltage dV/dt which is ca- pacitively coupled to the gate of Q2 and can induce a voltage spike on the gate that is sufficient to turn the MOSFET on, resulting in shoot-through current . The ratio of Qgd/Qgsl must be minimized to reduce the potential for Cdv/dt turn on. Fairchild Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe support@nsc.com Deutsch Tel: +49 (0) 8 141-35- English Tel: +44 (0) 1 793-85-68-56 italy Tel: +39 (0) 2 57 5631
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