ML6421CS-5 반도체 회로 부품 판매점
Triple Phase and Sinx/x Equalized / Low-Pass Video Filter
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 Micro Linear |
September 1999
ML6421*
Triple Phase and Sinx/x Equalized,
Low-Pass Video Filter
GENERAL DESCRIPTION
The ML6421 monolithic BiCMOS 6th-order filter provides
fixed frequency low pass filtering for video applications.
This triple phase-equalized filter with Sinx/x correction is
designed for reconstruction filtering at the output of a
Video DAC.
Cut-off frequencies are either 5.5, 8.0, or 3.0MHz. Each
channel incorporates a 6th-order lowpass filter, a first
order all-pass filter, a gain boost circuit, and a 75Ω coax
cable driver. A control pin (Range) is provided to allow
the inputs to swing from 0 to 1V, or 0.5 to 1.5V, by
providing a 0.5V offset to the input.
The unity gain filters are powered from a single 5V supply,
and can drive 1VP-P over 75Ω (0.5V to 1.5V), or 2VP-P
over 150Ω (0.5V to 2.5V) with the internal coax drivers.
FEATURES
s 5.5, 8.0, 9.3, or 3.0MHz bandwidth
s 1x or 2x gain
s 6th-order filter with phase and amplitude equalizer
s >40dB stopband rejection
s No external components or clocks
s ±10% frequency accuracy over maximum supply
and temperature variation
s <2% differential gain <2° differential phase
s <25ns group delay variation
s Drives 1VP-P into 75Ω, or 2VP-P into 150Ω
s 5V ±10% operation
BLOCK DIAGRAM
*Some Packages Are Obsolete
VCCB
VCCC
VCC
VCCA
8
65
11
VINA 15
3kΩ
1kΩ
BUF
IBIAS
VINB 16
3kΩ
1kΩ
BUF
IBIAS
VINC 2
3kΩ
RANGE 14
1kΩ
BUF
IBIAS
12
GND
LOW PASS
FILTER A
ALL
PASS
FILTER
SINX/X
EQUALIZER
1X/2X
BUF
10 VOUTA
3.33kΩ
LOW PASS
FILTER B
ALL
PASS
FILTER
SINX/X
EQUALIZER
1X/2X
BUF
9 VOUTB
3.33kΩ
LOW PASS
FILTER C
ALL
PASS
FILTER
SINX/X
EQUALIZER
1X/2X
BUF
7 VOUTC
3.33kΩ
13
GNDA
4
GNDC
1
GNDB
3
GND
FilterA
Filter B
Filter C
ML6221-1
5.5MHz
5.5MHz
5.5MHz
1x GAIN
ML6421-3 ML6421-4
8.0MHz
8.0MHz
8.0MHz
8.0MHz
3.0MHz
3.0MHz
2x GAIN
ML6421-5 ML6421-7
5.5MHz
5.5MHz
5.5MHz
9.3MHz
9.3MHz
9.3MHz
Triple Input/Anti-aliasing Video Filter
1
ML6421
PIN CONFIGURATION
ML6421
16-Pin Wide SOIC (S16W)
GNDB
VINC
GND
GNDC
VCC
VCCC
VOUTC
VCCB
1 16
2 15
3 14
4 13
5 12
6 11
7 10
89
TOP VIEW
VINB
VINB
RANGE
GNDA
GND
VCCA
VOUTA
VOUTA
PIN DESCRIPTION
PIN NAME
1 GNDB
2 VINC
3 GND
4 GNDC
5 VCC
6 VCCC
7 VOUTC
8 VCCB
9 VOUTB
10 VOUTA
FUNCTION
Ground pin for filter B.
Signal input to filter C. Input
impedance is 4kΩ.
Power and logic ground.
Ground pin for filter C.
Positive supply.
Power supply for filter C.
Output of filter C. Drive is 1VP-P into
75Ω (0.5V to 1.5V), or 2VP-P into
150Ω (0.5V to 2.5V).
Power supply for filter B: 4.5V to 5.5V.
Output of filter B. Drive is 1VP-P into
75Ω (0.5V to 1.5V), or 2VP-P into
150Ω (0.5V to 2.5V).
Output of filter A. Drive is 1VP-P into
75Ω (0.5V to 1.5V), or 2VP-P into
150Ω (0.5V to 2.5V).
PIN NAME
11 VCC A
12 GND
13 GNDA
14 RANGE
15 VINA
16 VINB
FUNCTION
Power supply for filter A.
Power and logic ground.
Ground pin for filter A.
Input signal range select.
For –1 to –4; when RANGE is low (0),
the input signal range is 0.5V to 2.5V,
with an output range of 0.5V to 2.5V.
When RANGE is high (1), the input
signal range is 0V to 2V, with an
output range of 0.5V to 2.5V.
For –5 to –7; when RANGE is low (0),
the input signal range is 0.5V to 1.5V,
with an output range of 0.5V to 2.5V.
When RANGE is high (1), the input
signal range is 0V to 1V, with an
output range of 0.5V to 2.5V.
Signal input to filter A. Input
impedance is 4kΩ.
Signal input to filter B. Input
impedance is 4kΩ.
2
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제조업체: Micro Linear
( ml )
ML6421CS-5 filter
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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