UPD64084 NEC, UPD64084 Datasheet - Page 49

• Manufacturer Part Number: UPD64084
• Description: THREE-DIMENSIONAL Y/C SEPARATION LSI WITH ON-CHIP MEMORY
• Manufacturer: NEC

0B
SA
D7
D6
D5-D4
D3-D0
Bit
TEST
Test bit
TEST
Test bit
YPFT
Specifies the Y peaking
filter (BPF) center
frequency.
YPFG
Specifies a Y peaking
filter gain.
Name and function
Table 15-2. Write Register Functions (9/14)
0: Normal mode
1: Test mode (setting prohibited)
0: Normal mode
1: Test mode (setting prohibited)
00: 3.58 MHz, 01: 3.86 MHz, 10: 4.08 MHz, 11: 4.22 MHz
0000: 1.0 times to 1000: ±0.0 times to 1111: +0.875 times
Y signal output frequency characteristic curve based
Output
Data Sheet S16021EJ2V0DS
Gain
1.875
1.25
1.13
1.00
0.88
0.75
0.63
0.50
0.38
0.25
0.13
0.00
1.5
1.0
0.5
0
Y-peaking filter BPF characteristic curve
0.5f
on YPFT and YPFG
YPFT=2
YPFT=0
SC
Description
f (MHz)
k=0
k=1
k=2
k=3
f
SC
1.5f
SC
Input freq.
YPFG=15
YPFG=12
YPFG=8
YPFG=4
YPFG=0
Typical
value
1000
PD64084
11
0
0
Initial
value
1000
11
0
0
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