W567CXXX Datasheet, PDF (11/13 Pages) List of Unclassifed Manufacturers – 16-CHANNEL SPEECH+MELODY PROCESSOR

(c) Crystal
W567CXXX
(3)
4.7uF
10ohm
(2) ^{0 .1uF}
(4) ^Cp1
Cp 2
(4)
Cp3
Cp4
VDDSPK
VDD/ VDDOSC
VDD_BP1/ VDD1
OSCIN
OSCOUT
X32I
X32O
BP00
|
BP07
BP10
|
BP17
BP20
|
BP27
PWM1+/DAC
PWM1-
Reset
Switch
/ RESET
0.1uF
PWM+/DAC
CVDD ^{VSSSPK VSS}
PWM-
(1)
VDDSPK
(5)
Speaker 1
8050
Rs
Speaker1
VDDSPK
(5)
Speaker 0
8050
Rs
Speaker0
Notes:
1. The block (1): Please refer to (a) and (b) circuits for two-battery or three-battery application.
2. The block (2): The low-pass filter circuit is necessary for VDD stability, in order to avoid VDDSPK noise.
3. The block (3): The capacitor, 4.7uF, shunted between VDD and GND is necessary for power stability. However the
value of capacitor depends on the power loading of the application
4. The block (4): Cp1 and Cp2 (15~30pF) are optional for main Crystal, which can be skipped normally.
5. The block (5): The Rs value is suggested of 270 ~ 1K to limit large DAC output current flowing into transistor.
6. Cp3 and Cp4 (15~30pF) are optional for 32KHz Crystal, which can be skipped normally.
7. Please connect all VDD pins include VDDOSC/VDD_BP1 to VDD. If with SIM application, the VDD_BP1 pin can
connect to different voltage for SPI flash or W551Cxx and the BP10~BP17 also use the same power VDD_BP1.
8. The above application circuit is for reference only. No warranty for mass production.
9. Other application circuits please refer to Design Guide.
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