Table of Contents
Advertisement
RX-504VBK/RX-504VLBK
RX-505VTN/RX-SOSVLTN
Mi M50198BP(IC602) : Digital Delay IC
1. Explanation of the operation
Audio signal is input to LPF1 to reduce the high frequency components. The output from LPF1 is
coded to 1 bit signal by ADM modulator and comparator with inside .This digital signal is input to
main control logic. And this signal obtain various effect,and is written in SRAM .At the same time
main control logic read the data from SRAM ,and input it to ADM demodulator .The ADM
demodulator converts 1bit signal to analog signal. The analog signal is input to LPF2 to reduce the
suprius components,and output to Pin 13.
LPF 4
LPF2
Reject the high frequency components which is contained the input signal and
unnecessary.
Reject the suprius components which is generated by the ADM demodulation by using
with comparator.
OP1,CC1
For ADM modulator.
OP2,CC2
For ADM demodulator.
2. Terminal Layout
3.P in function
seth
we
[tp] smi] pron [Eo
XIN
3] LP IN
rT
DEL2
20] OP IN
oe
ne
[4 [ons [ deteyeimeconerat [16 [orm | integratorinput |
-
hc
Ce ee
a
-COM/EASY
17
Oe ate
ee
(Rania Pe
Se ee
M.TIME
5] OP OUT
P7 [oe
|
toner
1/2 Vec
1
Power Supply
LP OUT
Output of LPF
Oscillation Terminal 114]
tem |
Input of LPF
Oscillation Terminal 115 | opour | Integrator output
X OUT
2] LP OUT
DEL1
21} OP OUT
A-GND
fia] LP OUT
= 3 =
m
«a
a
Connected to GND | 20 |
4
a
4. Block Diagram
Power
on
Reset
Muting Time
E
Delay Time Control
+
f!
11
3}
14]
5]
G
18]
9]
i
(No.20220) 1-3
Advertisement
Table of Contents
