BenQ
Rev 1.0
3.7 Vibrator circuit
VBAT
A
-
+
M1
vibrator
1
2
BQ4
BC817-40W
1
2
3
R84
36
R49
36
D12
RB520S-30
1
2
R46
2.7K
From
ULYSEE
BGND
IO0VIBRATOR
Description
27
To enable vibration, Ulysse sets IO0VIBRATOR to ‘H’ to activate the
motor. R46 and R49 are used to make BQ4 working in saturation area.
D12 is used to feedback EMF. Under the condition of VBAT = 3.6V,
the average voltage across the motor is about 1.4V and drain current is
around 88mA.
Содержание C200
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Страница 18: ...18 May 19 2003 6809464A5 O General Operation Product Family D10 PRELIMINARY ...
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Страница 85: ...BenQ Rev 1 0 44 ...
Страница 86: ...BenQ Rev 1 0 45 ...
Страница 87: ...BenQ Rev 1 0 46 ...
Страница 88: ...BenQ Rev 1 0 47 ...
Страница 89: ...BenQ Rev 1 0 48 ...
Страница 90: ...BenQ Rev 1 0 49 ...
Страница 91: ...BenQ Rev 1 0 Radio Frequency function Descriptions Top Side 50 Bottom Side ...
Страница 92: ...BenQ Rev 1 0 51 ...
Страница 95: ...BenQ Rev 1 0 54 Apollo Block Diagram ...
Страница 96: ...BenQ Rev 1 0 Tx Block Diagram 55 ...
Страница 97: ...BenQ Rev 1 0 56 Rx Block Diagram ...
Страница 98: ...BenQ Rev 1 0 57 TX Front End EGSM DCS ...
Страница 99: ...BenQ Rev 1 0 58 Rx Front End EGSM DCS ...
Страница 100: ...BenQ Rev 1 0 59 RF power management ...
Страница 101: ...BenQ Rev 1 0 60 Tx Power ...
Страница 102: ...BenQ Rev 1 0 VCXO 61 ...
Страница 103: ...BenQ Rev 1 0 Base Band full schematic 62 ...
Страница 104: ...BenQ Rev 1 0 RF full schematic 63 ...
Страница 140: ...BenQ Rev 1 0 Replacement Parts Exploded View 99 Fig 1 Mechanical Exploded View I ...
Страница 141: ...BenQ Rev 1 0 Fig 2 Mechanical Exploded View II 100 ...
Страница 142: ...BenQ Rev 1 0 Fig 3 Mechanical Exploded View III 101 ...