ACCO Brands M01042-V 사용자 설명서

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Product Engineering Specification 
 
Document 
PES-K33440 Rev
0.8
March 27, 2008
 
 
 
 
 
 Confidential 
Page 8 of 19
 
3.0 
Electrical Specifications
 
 
This product is a standard BT handsfree visor product with a few additional features. 
3.1 General Description 
  Firmware is to be written to follow requirements of interaction spec with the smarts to store 3 
individual presets for each paired phone.   
 
For example, PhoneA presets could be different from PhoneB.  The firmware will be smart 
enough to remember the BT Phone ID and allocate the separate memory location for presets for 
that phone.  Therefore, there are actually 9 presets stored in the device.   
 
Whenever a BT phone with an ID already listed in the device, it is moved to the top of the list and 
the corresponded presets are loaded.  When a phone ID not listed in the device is paired, the 
memory location for the one on the bottom of the list will be used overwriting the old ID and 
clearing all presets while moving the phone ID to the top of the list. 
3.2 Interface Description 
See in appendix 
3.3 Power Requirements 
Talk time:  
up to 6 hours 
Standby time:   up to 7 days. 
Power provided by a user-replaceable NiMH battery 800mAh 
Recharging circuitry for NiMH battery is included in CLA battery charger. 
USB port on CLA charger must meet iPhone power requirements listed in 3.8 
3.4 BT Requirements 
Chipset: CSR BC05  
BT 2.1 
Paired devices limited to 3 phones.  One at a time 
3.5 Audio Requirements 
•  Audio Out:  Speaker 
Power (minimum) : 1W continuous,1.5- 2W peak. 
Sensitivity (SPL): min 82 +/- 3dB 
Impedance: 8 Ohm +/- 15% 
Lowest resonant frequency [Fo]:  280 – 480 Hz 
Effective frequency Range (minimum):  Fo – 10kHz 
THD < 5% 
Recommended speaker VECO 
P40DS08G-3-75ND 
•  Audio In:  measurement method tbd 
Generally the intent is to filter out all external noise factors including but not 
limited to: 
•  Road Noise 
•  Car Noise 
•  Wind Noise 
•  Tire Noise 
•  Echo