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BU1924F View Datasheet(PDF) - ROHM Semiconductor

Part Name
Description
Manufacturer
BU1924F
ROHM
ROHM Semiconductor ROHM
BU1924F Datasheet PDF : 5 Pages
1 2 3 4 5
Audio ICs
!Block diagram
BU1924 / BU1924F
MUX
(4)
100k
270p
120k100k
Vref
(3)
2.2µF
VDD1 (5)
1
Analog
Power supply
VSS1
(6)
anti-aliasing
filter
560p
(7)
VSS3
CMP
(8)
8th Switched
capacitor filter
comparator
(16) RCLK
(1) QUAL
1
VDD2
(12)
2
VSS2
Digital
Power supply
(11)
PLL
57kHZ
RDS/ARI
Reference
clock
(13)
(14)
XI
XO
4.332MHZ
33pF
3
33pF
3
PLL
1187.5Hz
Bi-phase
decoder
Differential
decoder
(2) RDATA
Measurement
circuit
(10)
(9)
T1
T2
1 : VDD1 and VDD2 are separated within the IC.
2 : Have VDD2 (digital power supply) of a sufficiently low impedance.
3 : Match the capacitor constants with the crystal manufacturer.
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
 

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