m65849bfp Mitsumi Electronics, Corp., m65849bfp Datasheet - Page 11

• Manufacturer Part Number: m65849bfp
• Description: Single Chip Surround Processor
• Manufacturer: Mitsumi Electronics, Corp.

The accuracy of the internal resisters are about ±30%.
The LPF Of The Input & Output Stage Of The Digital Delay
The circuit of the LPF is as follows.
Internal of IC
INPUT
* The Cut Off Frequency of LPF means the cut off frequency of the each stage (A/D & D/A)
*
The quality factor (Q) is as follows under the conditions of both Short Delay & Long Delay.
The cut off frequency is calculated by the following formulas.
At all the cut off frequency is decided by the external C.
We recommend C1=0.0047µF and C2=0.001µF.
Surround
Echo
and doesn't mean the total cut off frequency.
Under this condition, fc and Q are as follows.
•Surround
•Echo
SD
LD
fc=
fc=
Q=
fc=3.1kHz
fc=7.3kHz
10k
11 or 19 pin
24k
1
3
2 x10k x
2 x24k x
98.3 ~ 196.6 ms
9.2 ~ 49.2 ms
DELAY TIME
C1
C2
Q=0.72
1
1
SINGLE CHIP SURROUND PROCESSOR
SD
LD
C1
MITSUBISHI
ELECTRIC
10k
24k
C1xC2
C1xC2
12 or 20 pin
MITSUBISHI SOUND PROCESSOR ICs
(SHORT DELAY)
(LONG DELAY)
M65849BFP
S
SD
LD
SD
LAD
W
+
-
10k
C2
24k
C1,C2:External C
13 or 21 pin
(
1 1
OUTPUT
/ 1 5 )
50
S E R I E S
S E R I E S