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BH7865FS
Multimedia ICs
High-performance 5-channel video driver IC for DVD
BH7865FS
BH7865FS is a 5-channel video driver IC developed for DVD player/recorder. Special filters adjusted to each band of various video signals are incorporated into a single chip. Extended definition, size reduction, and high cost performance can be achieved in DVD players.
Application DVD players, DVD recorders
Features 1) Each high-performance filter, 6dB amplifier, and 75 driver for DVD are incorporated into a single chip. 2) Driver 5ch (Y, C, MIX, Cb, Cr) 3) Group delay difference between chroma signal and luminance signal is a small number of nsec. 4) Drive 2 lines of each signal 5) Operating by 5V single power supply 6) Built-in mute circuit
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Parameter Symbol Limits 6.0 0.95 -10 to +70 -55 to +150 Unit V W
Absolute maximum ratings (Ta = 25C)
Impressed voltage Power dissipation Operating temperature range Storage temperature range
VCC max
Pd Topr Tstg
C C
Reduced by 7.6mW for each increase in Ta of 1C over 25C. PCB (70mmx70mm, t=1.6mm) glass epoxy mounting.
Recommended operating conditions (Ta = 25C)
Parameter Power supply voltage Parameter Power supply voltage Symbol VCC Symbol VCC Min. 4.5 Min. 4.5 Typ. - Typ. - Max. 5.5 Max. 5.5 Unit V Unit V
Radiation resistance is not included in the design.
Radiation resistance is not included in the design.
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BH7865FS
Multimedia ICs
Block diagram
CTRAP
1
6dB 75 TEST
32 COUT
MUTE
MUTE
2 3
20k
31 TEST 30 MIXOUT 29 MIXFB
CIN
1.5-6M BPF
6dB
75
GND
4 5 6
CLAMP 6M LPF
YIN
28 GND 27 YTRAP 26 GND
6dB 75
VCC
GND
7 8 9
N.C.
25 YOUT 24 YFB 23 GND 22 N.C.
GND
N.C. 10
VCC 11
3M LPF 20k
CbIN 12
21 N.C. 20 GND
GND 13
3M LPF 20k
CrIN 14
6dB
75
19 CbOUT 18 CbTRAP
SEL C/CbCr 15
SEL C/CbCr
CrTRAP 16
6dB
75
17 CrOUT
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BH7865FS
Multimedia ICs
Pin descriptions and Input / output circuits
Pin No. Pin name Standard voltage Input/output equivalent circuit Pin description
1 13 15 20
CTPAP CbTRAP CrTRAP YTRAP
2.1V 2.1V 2.1V 1.6V
Terminal for LC reesonance
2
MUTE
-
Mute control terminal. Five channels are muted simultaneously by setting MUTE to "L"
3 9 11
CIN CbIN CrIN
2.8V 2.8V 2.8V
20k
Signal Input terminal. Input terminal for chroma signal and color-difference signal. Bias type input. The input impedance is 20k
4 10 17 21
GND
0V
Grounding terminal.
5
YIN
2.2V
Signal Input terminal. Input terminal for luminance signal. Di clamp input.
6 8
VCC
5V
Power supply voltage. VCC is separated into Pin6 and Pin8. That is to say C,MiX and Y are partitoned by Pin6 and Cb and Cr by Pin8 . They and not connected internally. Connect them externally when using.
12
SEL
-
SEL control terminal. Cb and Cr are muted simulataneously by Setting SEL to "L".
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BH7865FS
Multimedia ICs
Pin No. Pin name Standard voltage Input/output equivalent circuit Pin description
14 16
CrOUT CbOUT
2.3V 2.3V
Signal output terminal. Output terminal for color-difference signal.
18 19
YFB YOUT
1.3V 1.2V
Signal output terminal. Output terminal for luminance signal (interlaced type).
22 23
MIXFB MIXOUT
1.3V 1.2V
Signal output terminal. Output terminal for Y/C MIX signal.
24
TEST
0V
Test terminal. Usually, short-circuit this terminal to GND when using it.
25
COUT
2.3V
Signal output terminal. Output terminal for chroma signal.
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BH7865FS
Multimedia ICs
Electrical characteristics (unless otherwise noted, Ta=25C, VCC=5.0V) (The standard values (typical values) below are design value for your reference.)
Parameter Circuit current 5CH ACTIVE 3CH ACTIVE MUTE Maximum output level Frequency C Symbol ICC1 ICC2 ICC3 VOM GFC GFMIX1 GFMIX2 GFY GFCb GFCr GFCATT GFMIX1ATT GFMIX2ATT GFYATT GFCbATT GFCrATT MT ZIN VTHMH VTHML VTHSH VTHSL GVC GVMIXC GVMIXY GVY GVcb GVcr GD1 Min. - - - 2.6 -1.5 -1.5 -1.5 -1.5 -1.5 -1.5 - - - - - - - 16 4.0 GND 4.0 GND 5.3 5.3 5.3 5.3 5.3 5.3 - Typ. 65 50 15 3.0 0 0 0 0 0 0 -40 -40 -40 -40 -40 -40 -50 20 - - - - 6.0 6.0 6.0 6.0 6.0 6.0 5.0 Max. 97.5 75 22.5 - +1.5 +1.5 +1.5 +1.5 +1.5 +1.5 - - - - - - - 24 VCC 1.0 VCC 1.0 6.7 6.7 6.7 6.7 6.7 6.7 - Unit mA mA mA VPP dB dB dB dB dB dB dB dB dB dB dB dB dB k V V V V dB dB dB dB dB dB nsec Conditions No signal MUTE : OFF, SEL : ON No signal MUTE : OFF, SEL : OFF No signal MUTE : ON, SEL : OFF CIN : f=3.58MHz, YIN, CbIN, CrIN : f=1MHz CIN : f=1.5/3.58MHz, 6/3.58MHz, 1VPP CIN : f=1.5/3.58MHz, 6/3.58MHz, 1VPP YIN : f=6/1MHz, 1VPP YIN : f=6/1MHz, 1VPP CbIN : f=3/1MHz, 1VPP CrIN : f=3/1MHz, 1VPP CIN : f=27/3.58MHz, 1VPP CIN : f=27/3.58MHz, 1VPP YIN : f=27/1MHz, 1VPP YIN : f=27/1MHz, 1VPP CbIN : f=13.5/1MHz, 1VPP CrIN : f=13.5/1MHz, 1VPP CIN : f=3.58MHz, 1VPP YIN, CbIN, CrIN : f=1MHz, 1VPP CIN, CbIN, CrIN input terminal MUTE OFF MUTE ON SEL ON (C, Cb, Cr) SEL OFF (C) CIN : f=3.58MHz, 1VPP CIN : f=3.58MHz, 1VPP YIN : f=1MHz, 1VPP YIN : f=1MHz, 1VPP CbIN : f=1MHz, 1VPP CrIN : f=1MHz, 1VPP CIN : f=3.58MHz, YIN : f=1MHz, VIN=1VPP GD difference between Y and C YIN, CbIN (CrIN) : f=1MHz, VIN=1VPP GD difference between Y and Cb (Cr) 1VPP standard staircase signal 1VPP standard staircase signal YIN : f=1MHz, 1VPP CIN : f=3.58MHz, 1VPP YIN : f=1MHz, 1VPP Cb(Cr) : f=1MHz, 1VPP 100% white video signal
1
characteristics1 MIX1 MIX2 Y Cb Cr Frequency C
characteristics2 MIX1 MIX2 Y Cb Cr MUTE attenuation Input impedance MUTE holding voltage
2
SEL holding voltage Voltage gain C MIX(C) MIX(Y) Y Cb Cr YC Group delay characteristics YCb(Cr) Diffrential gain Diffrential phase Crosstalk between channels CY Cb(Cr)Y C/N
GD2 DG DP CT1 CT2 VN
- - - - - -
5.0 1.0 0.5 -50 -50 -75
- - - - - -
nsec % deg dB dB dB
1 Add the sine wave of "f=1MHz (C : f=3.58MHz)" to the input VIN and adjust the input level so that the tertiary distortion of output can be -30dB. Then, the output voltage shall be a maximum output level VOM (VPP). 2 Measure the input voltage VIN50 (V) and input open circuit voltage VIN (V) when 50A has applied to the input CIN, CbIN and CrIN. Then, the input impedance ZIN is as follows : ZIN=|VIN50-VIN| / 50 [k]
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BH7865FS
Multimedia ICs
Measurement circuit
0.68
75
1
51p 6dB 75 TEST
32
0.1 75 75 MUTE
COUT1
MUTE 0.1 CIN 75
2 3
20k
31
75 100 75 75 22
COUT2
1.5-6M BPF
6dB
75
30
MIXOUT1
4
1 YIN
29
6M LPF
75 75 MIXOUT2
5
75
28
0.68
6
100 0.1 CLAMP
27
51p
7 8 9
6dB 75
26
100 75 75 22 75 75 75 YOUT2 YOUT1
25 24
10 11
100 0.1
23
75 75
YOUT3
22
75 YOUT4 3M LPF 20k
12
CbIN 75 47
21 20
75 75 CbOUT1
13
47
14
CrIN 75 20k
3M LPF
330 6dB 75
75 75 CbOUT2
19
2.7
15
SEL C/CbCr 2.7 51p
18
51p 330 75 75 75 75 CrOUT2 CrOUT1 6dB 75
16
17
Fig.1
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BH7865FS
Multimedia ICs
Application example
0.68 75
1
51p 6dB 75 TEST
32
0.1 75 MUTE
COUT1
MUTE 0.1 CIN 75
2 3
20k
31
100 75
COUT2
1.5-6M BPF
6dB
75
30
MIXOUT1 22
4
1 YIN
29
6M LPF
75 MIXOUT2
5
75
28
0.68
6
100 0.1 CLAMP
27
51p
7 8 9
6dB 75
26
100 75 YOUT1 22 75 YOUT2 75
25 24
10 11
100 0.1
23
75
YOUT3
22
YOUT4 3M LPF 20k 75
12
CbIN 75 47
21 20
CbOUT1
13
47
14
CrIN 75 20k
3M LPF
330 6dB 75
75 CbOUT2
19
2.7
15
SEL C/CbCr 2.7 SEL C/CbCr
18
51p 330 75 CrOUT1 75 CrOUT2 6dB 75
16
51p
17
Fig.2
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BH7865FS
Multimedia ICs
Operation notes (1) Output terminal load resistance can be driven in four channels in Y signal and in two channels in any other signals. Use it within the allowable dissipation range. (2) Minimize the common impedance of power supply line of pin6 and pin8. (3) Inductor and capacitor of series resonance can be removed. Treat them with great care when removing them, because the terminal may catch noise component. Even if they are removed, attenuation in TRAP frequency are not expected so much.
External dimensions (Unit : mm)
13.60.2
32 17
7.80.3 5.40.2
1.80.1
1
16
0.150.1 0.1
0.11
0.8
0.360.1
SSOP-A32
0.3Min.
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