BU1425AKV Rohm Semiconductor, BU1425AKV Datasheet - Page 15

• Manufacturer Part Number: BU1425AKV
• Description: IC ENCODER NTSC/PAL DGTL VQFP64
• Manufacturer: Rohm Semiconductor
• Type: NTSC/PAL Encoderr

Specifications of BU1425AKV

• Applications: Video
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

With the BU1425AK / AKV, the frequency characteristic
of Y, which is mixed with the VOUT pin output, is set so
Table 8: Frequency characteristic of the Y channel
6) Y filter
Multimedia ICs
YFILON2B
H
H
L
L
– 10
– 15
– 20
– 25
– 30
– 35
– 40
– 10
– 15
– 20
– 25
– 30
– 35
– 40
– 5
– 5
10
10
5
0
5
0
100
100
Fig.7 chart3 (BCLK = 14.318MHz)
Fig.5 chart1 (BCLK = 13.5MHz)
Gain-Phase Graphic
Gain-Phase Graphic
FREQUENCY (kHz)
FREQUENCY (kHz)
1000
1000
YFILON1B
H
H
L
L
10000
10000
20000
20000
– 135
– 180
– 135
– 180
– 45
– 90
– 45
– 90
180
135
180
135
90
45
90
45
0
0
(same signal as YOUT pin output is mixed with VOUT)
Frequency characteristic of the Y channel
that it can be selected using the YFILON1B and 2B pins.
A through filter is normally used on the YOUT pin output,
so that it is not limited to this method.
– 10
– 15
– 20
– 25
– 30
– 35
– 40
– 5
10
5
0
100
Fig.6 chart2 (BCLK = 13.5MHz)
TRAP filter through
Gain-Phase Graphic
chart1
chart2
chart3
FREQUENCY (kHz)
BU1425AK / BU1425AKV
1000
10000
20000
– 135
– 180
– 45
– 90
180
135
90
45
0
15