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BC352239A Datasheet, PDF (21/116 Pages) List of Unclassifed Manufacturers – BlueCore 3-Multimedia External
Electrical Characteristics
Input/Output Terminal Characteristics (Continued)
Output Stage/Loudspeaker Driver
Minimum
Typical
Maximum
Unit
Output power into 32Ω
Output voltage full scale swing
Output current drive (at full scale swing)(9)
Output full scale current (at reduced swing)(9)
Distortion and noise (relative to full scale), THD
Allowed Load: resistive
Allowed Load: capacitive
-
30
-
mW pk
-
2.0
-
V pk-pk
10
20
40
mA
-
75
-
mA
-
-75
-
dBc
16
-
O.C.
Ω
-
-
500
pF
Notes:
VDD_CORE, VDD_RADIO, VDD_LO and VDD_ANA are at 1.8V unless shown otherwise.
VDD_PADS, VDD_PIO and VDD_USB are at 3.0V unless shown otherwise.
The same setting of the digital trim is applied to both XTAL_IN and XTAL_OUT.
Current drawn into a pin is defined as positive, current supplied out of a pin is defined as negative.
(1) Internal USB pull-up disabled.
(2) Access of ADC is through VM function and therefore sample rate given is achieved as part of this
function.
(3) Specified for an output voltage between 0.2V and VDD_PIO -0.2V.
(4) Integer multiple of 250kHz.
(5) The difference between the internal capacitance at minimum and maximum settings of the internal
digital trim.
(6) XTAL frequency = 16MHz; XTAL C0 = 0.75pF; XTAL load capacitance = 8.5pF.
(7) Clock input can be any frequency between 8 and 40MHz in steps of 250kHz plus CDMA/3G TCXO
frequencies of 7.68, 14.44, 15.36, 16.2, 16.8, 19.2, 19.44, 19.68, 19.8 and 38.4MHz.
(8) Clock input can either be sinusoidal or square wave. If the peaks of the signal are below VSS_ANA or
above VDD_ANA a DC blocking capacitor is required between the signal and XTAL_IN.
(9) For specified THD. Much greater current can be supplied by the loudspeaker driver with compromised
THD.
BC352239A-ds-001Pc
© Cambridge Silicon Radio Limited 2004
Production Information
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