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BH7659S / BH7659FS
Multimedia ICs
Input selector for high resolution displays
BH7659S / BH7659FS
The BH7659S / BH7659FS are input signal switching ICs developed for high resolution displays that have three fc = 250MHz wide-band video switching circuits for RGB video signal switching and four CMOS analog switching circuits for switching between HD and VD signals as well as I2C bus signals (SDA and SCL).
Applications High-resolution displays and high-definition TVs
Features 1) Operates with a 5V power supply voltage. 2) Built-in, wide-band switching circuit for RGB switching (fc = 250MHz).
3) SDA and SCL as well as HD and VD signal switching is possible. 4) Built-in power save function.
Absolute maximum ratings (Ta = 25C)
Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 8.0 13001 (SDIP32) 8002 (SSOP-A32) - 25 ~ + 75 - 55 ~ + 125 Unit V mW C C
1 Reduced by 13mW for each increase in Ta of 1C over 25C. 2 Reduced by 8.0mW for each increase in Ta of 1C over 25 C.
Recommended operating conditions (Ta = 25C)
Parameter Operating power supply voltage
Not designed for radiation resistance.
Symbol VCC
Min. 4.5
Typ. 5.0
Max. 5.5
Unit V
BH7659S / BH7659FS
Multimedia ICs
Block diagram
RINA
1
32
RVCC
A RGND 2 R 31 ROUT
B GINA 3 30 GVCC
A GGND 4 G 29 GOUT
B BINA 5 28 BVCC
A BGND 6 B RINB 7 26 HDOUT B 27 BOUT
PSH
8
POWER SAVE
A
25
HDINA
GINB
9
B
24
HDINB
VDD
10
23
SCLIO
BINB
11
A
22
SCLIOA
N.C.
12
21
N.C.
CTL
13
CTL
B
20
SCLIOB
A VDINA 14
A
19
SDAIOA
B VDINB 15
B
18
SDAIOB
VDOUT
16
17
SDAIO
BH7659S / BH7659FS
Multimedia ICs
Input / Output equivalent circuits
Pin No. Pin description (pin name) Reference potential Input / output circuit Function
VCC
1 3 5
Red signal input A (RINA) Green signal input A (GINA) Blue signal input A (BINA) Red signal input B (RINB) Green signal input B (GINB) Blue signal input B (BINB)
3.5V when selected 0V when not selected8
3.7V 10k
Switches between the two RGB signaling systems. Input B is selected by setting the CTL pin to high and input A to low.
2k
7 9 11
VCC
27
Blue signal output (BOUT) Green signal output (GOUT) Red signal output (ROUT) 1.85V Power save activates by setting the PSH pin to high.
500 2k
29
31
VCC
8
Power save input (PSH) 0V Control input (CTL)
50k
3.25V
PSH Power save off 1.5V Power save on 3.5V CTL Input A 3.5V Input B 1.5V
9
BH7659S / BH7659FS
Multimedia ICs
Pin No. 14 15 16 Pin description (pin name) VD signal input A (VDINA) VD signal input B (VDINB) VD signal output (VDOUT) SDA signal I / O (SDAIO) SDA signal I / O B (SDAIOB) SDA signal I / O A (SDAIOA) SCL signal I / O B (SCLIOB) SCL signal I / O A (SCLIOA) SCL signal I / O (SCLIO) HD signal input B (HDINB) HD signal input A (HDINA) HD signal output (HDOUT) Red ground (RGND) Green ground (GGND)
VDD
Reference potential
Input / output circuit
Function
17 18 19
IN
OUT
Switches between the two VD, HD, SDA, and SCL signaling systems. Input B is selected by setting the CTL pin to high and input A to low. Bi-directional I / O is possible with CMOS analog switch
0V
20 22 24
25 26 27
2
0V
--
Red video SW block GND
4
0V
--
Green video SW block GND
6
Blue ground (BGND)
0V
--
Blue video SW block and CMOS SW block GND
10
CMOS power supply voltage (VDD)
5V
--
CMOS SW block VDD
28
Blue power supply voltage (BVCC) Green power supply voltage (GVCC)
5V
--
Blue video SW block VCC
30
5V
--
Green video SW block VCC
32
Red power supply voltage (RVCC)
5V
--
Red video SW block VCC
BH7659S / BH7659FS
Multimedia ICs
Electrical characteristics (unless otherwise noted, VCC=5.0V, Ta = 25C)
Parameter Overall device Circuit current Circuit current during power save R, G, and B video switches Voltage gain Interchannel relative gain Interblock relative gain Output dynamic range CMOS analog switch On-resistance Interchannel on-resistance difference Interchannel crosstalk Transmission delay time Control block High level voltage Low level voltage VH VL 3.5 -- -- -- -- 1.5 V V -- -- RON RON CT tD -- -- -- -- 200 20 - 70 20 400 40 - 55 -- dB ns VIN = 2.5V VIN = 2.5V f = 150kHz RL = 10, CL = 50pF GV GVC GVB VOM - 1.0 - 0.5 - 0.5 2.6 - 0.5 0 0 -- 0 0.5 0.5 -- dB dB dB VP-P f = 10MHz f = 10MHz f = 10MHz f = 1kHz ICC IPSV 15 7 25 14 35 22 mA mA PS = "H" -- Symbol Min. Typ. Max. Unit Conditions
Guaranteed design parameters (unless otherwise noted, VCC=5.0V, Ta = 25C)
Parameter R, G, and B video switches Frequency characteristics 1 Frequency characteristics 2 Interchannel relative frequency characteristics Interblock relative frequency characteristics Interchannel crosstalk 1 Interchannel crosstalk 2 Interblock crosstalk 1 Interblock crosstalk 2 f1 f2 fC fB CTC1 CTC2 CTB1 CTB2 - 3.0 - 6.0 - 0.5 - 0.5 -- -- -- -- 0 -3 0 0 - 50 - 30 - 50 - 30 + 1.0 - 1.0 0.5 0.5 - 35 - 15 - 35 - 15 dB dB dB dB dB dB dB dB f = 50MHz f = 250MHz f = 50MHz f = 50MHz f = 50MHz f = 250MHz f = 50MHz f = 250MHz Symbol Min. Typ. Max. Unit Conditions
BH7659S / BH7659FS
Multimedia ICs
Measurement circuit 1
VCC 1
+
C1
+
A
AM 2
1
32
SW1
C2 C1
C2
2
31
C1
+
1
+
3
30
SW3 2
C2 C1 C1 = 0.01F C2 = 47F C3 = 50pF R1 = 75 R2 = 10k V1 = 1.5V V2 = 3.5V
C2
4
29
C1
+
R1
1
+
5
28
SW5 2 OSC1
C2 C1
C2
6
27
3 C1 1
+
V
V
V
C3
V
SW23 7 26 2
V
SW7 2
R OSC 2 2.5V SW25 3 R1 2 OSC 2 2.5V
+
C2 1 V1 1 V2 2 C1 8 SW8 25
V3 C2 C1
1
1
+
SW24 9 24
3 R1 2
+
SW9 2
V3 C2 SW23 3
V
C2 1 C1 10 23 OSC 2 2.5V SW22 11 22 2
+ + +
C3
2 1
V
R
C2 C1 1 SW11 2 C2 1 N. C. 12 21
3 R1 V3 C2
N. C. OSC 2
V2 C1 C2 V3 2.5V 1 2 R1 3 SW14 14 OSC 2 SW18 15 1 2
V
+ +
2.5V SW20 13 SW13 20 2
+
1 V1 2
3 R1 V3 C2 C1 SW19 OSC 2 2.5V 3 R1 2 OSC 2 2.5V 3 R1 2
+ +
1 19
V3 C2 C1
1
C1 C2 V3 2.5V
18 V3 C2 C1 SW17 2 1
V
1 R2
V
3
V
C3
R1 3 SW15 OSC 2
1 16 2 SW16 17
R
C3
3
Fig.1
BH7659S / BH7659FS
Multimedia ICs
Measurement circuit 2
VCC A AM OSC R1 C2 C1
+
1
32
Ro
C1
+
3
30
C2 C1 C1 = 0.01F C2 = 47F R1 = 50 Ro = 130
OSC
R1
C2
4
29 Ro
C1
+
5
28
C2 C1
OSC
R1
C2
6
27 Ro
C1 7 26
+
OSC
R1
C2
8
25
C1 9 24
+
OSC
R1
C2 C1 10 23
+
C2 C1 11 22
+
OSC
R1
C2
N. C.
12
21
N. C.
VCC
IN: A 1 IN: B CTL 13 20
14
19
15
18
16
17
Fig.2
V
V
V
+ + +
C2 C1
2
31
BH7659S / BH7659FS
Multimedia ICs
Measurement conditions measurement circuit 1
Parameter 8 Circuit current Circuit during power save 1 2 Switch conditions Others 1 1 (1) (2) Notes
measurement circuit 2
Parameter 1 Voltage gain (GV) Output dynamic range (VOM) Frequency characteristics 1 (f1) RinA RinB GinA GinB BinA Frequency characteristics 2 (f2) Interchannel crosstalk 1 (CTC1) Interchannel crosstalk 2 (CTC2) Interblock crosstalk 1 (CTB1) Interblock crosstalk 2 (CTB2) Interchannel relative gain: GVC Interblock relative gain: GVB Interchannel relative frequency characteristics: fC Interblock relative frequency characteristics: fB BinB RinAB RinBA GinAB GinBA BinAB BinBA GRinA BRinA RGinA BGinA RBinA GBinA -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 7 -- Input pin: (OSC) 3 -- -- 9 -- -- -- 5 -- -- -- -- 11 -- -- -- -- -- Switch conditions CTL IN: A IN: B IN: A IN: B IN: A IN: B IN: B IN: A IN: B IN: A IN: B IN: A IN: A IN: A IN: A IN: A IN: A IN: A (4) (5) (9) (10) (14) (13) (12) (8) (11) (7) (3) (6) Notes
BH7659S / BH7659FS
Multimedia ICs

measurement circuit 1
Parameter 13 On-resistance (RON) VDinA VDinB SDinA SDinB SCinA SCinB HDinA HDinB Interchannel crosstalk (CT) VDinAB VDinBA SDinAB SDinBA SCinAB SCinBA HDinAB HDinBA Transmission delay VDinA time (tD) VDinB SDinA SDinB SCinA SCinB HDinA HDinB 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 14 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 15 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 1 16 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 17 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 Switch conditions 18 19 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 1 1 20 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 22 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 1 1 23 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 24 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 25 1 1 1 1 1 1 2 1 1 1 1 1 1 1 3 1 1 1 1 1 1 1 3 1 26 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 others 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 (16) (18) (17) (15) Notes
Interchannel on-resistance difference (RON)
Notes: (1) Circuit current : Icc ; measurement of the circuit current. (2) Circuit current during power save : IPSV ; measurement of the circuit current during power save. (3) Voltage gain : GV VIN = 1.0VP-P, f = 10MHz sine wave input from the OSC GV = 20log (VOUT / VIN) [ dB ] (4) Interchannel relative gain : GVC GVC = GVRa - GVRb, GVGa - GVGb, GVBa - GVBb [ dB ] (5) Interblock relative gain : GVB GVBR= GVRa - GVGa, GVRa - GVGb, GVRa - GVBa, GVRa - GVBb [ dB ] GVBG = GVGa - GVRa, GVGa - GVRb, GVGa - GVBa, GVGa - GVBb [ dB ] GVBB = GVBa - GVRa, GVBa - GVRb, GVBa - GVGa, GVBa - GVBb [ dB ] (6) Output dynamic range : VOM
Connect a distortion meter to the output. After adding a f = 1kHz sine wave input from the OSC, adjust the input level so that the output distortion is 1.0%. The output voltage at that time is VOM [VP-P]. (7) Frequency characteristics 1 : f1 Apply to the input pin a VIN = 1.0VP-P, f = 10MHz and 50MHz sine wave input from the OSC. f1 = GV (50MHz) - GV (10MHz) [ dB ]
BH7659S / BH7659FS
Multimedia ICs
(8) Frequency characteristics 2 : f2 Apply to the input pin a VIN = 1.0VP-P, f = 10MHz and 250MHz sine wave input from the OSC. f2 = GV (250MHz) - GV (10MHz) [ dB ] (9) Interchannel relative frequency characteristics : fc fc = f1 (INA) - f1 (INB) [ dB ] (10) Interblock relative frequency characteristics : fb fb = f1 (RINA) - f1 (GINA), f1 (GINA) - f1 (BINA), f1 (BINA) - f1 (RINA) [ dB ] = f1 (RINB) - f1 (GINB), f1 (GINB) - f1 (BINB), f1 (BINB) - f1 (RINB) [ dB ] (11) Interchannel crosstalk 1 : CTC1 Apply to the input pin a VIN = 1.0VP-P, f = 50MHz sine wave input from the OSC. CTC1 = 20log (VOUT / VIN) [ dB ] (12) Interchannel crosstalk 2 : CTC2 Apply to the input pin a VIN = 1.0VP-P, f = 250MHz sine wave input from the OSC. CTC2 = 20log (VOUT / VIN) [ dB ] (13) Interblock crosstalk 1 : CTBB1 Apply to the input pin a VIN = 1.0VP-P, f = 50MHz sine wave input from the OSC. CTB1 = 20log (VOUT / VIN) [ dB ] (14) Interblock crosstalk 2 : CTB2 Apply to the input pin a VIN = 1.0VP-P, f = 250MHz sine wave input from the OSC. CTB2 = 20log (VOUT / VIN) [ dB ] (15) On-resistance : RON RON = (VOUT / VIN - 1) x 104 [ ] (16) Interchannel on-resistance difference : RON RON = RON (INA) - RON (INB) (17) Interchannel crosstalk : CT Apply to the input pin a VIN = 1.0VP-P, f = 150MHz sine wave input from the OSC2. CT = 20log (VOUT / VIN) [ dB ] (18) Transmission delay time : tD Apply to the input pin the rectangular wave of P1 from the OSC2.
20ns VCC Input: P1
100ns f = 150kHz
50% 0V
Output 50%
tD
BH7659S / BH7659FS
Multimedia ICs
Application example
Input A R G B VD R4 SDA R4 SCA R4 HD R4 5. 1 6 Input B R G B C1 VD
+
C1
+
VCC R2 1 A R B 3 A 4 G B 5 A B B 27 Ro 28
+
VCC 32
+
C2 R1
C1 31 Ro
C2
2 C1
+
R OUT VCC
VCC R2
5. 1 R1 5. 1
C2
30
+
C1 29 Ro
C2
G OUT VCC
C1 5. 1
+
VCC R2
C2 R1
C1
C2
B OUT HD OUT
C1
+
VCC R2 7
C2 R1 R4 PS:H C3 VCC
26 R3 A 25 R3 B
8
POWER SAVE
R4 SDA R4 SCA R4 HD R4
5. 1 VCC R1 5. 1 C1 5. 1
+
9 C2 R2
24 R3 SCL IO
10 C2 C1 C2 R1 VCC R2 11 A
23 R3
22 R3
5. 1 12 N. C. N. C. 21
CTL IN A: H IN B: L
R4 13 C3 R3 14 A CTL
B 20 R3 A 19 R3
R3 15
B
B 18 R3
VD OUT
R3 16 17 R3
SDA IO
Note: The Ro value differs depending on the load capacitance. Set so that the frequency characteristics are flat. R1 = 75 R2 = 47 R3 = 100 R4 = 1.2k C1 = 0.01F C1 = 47F C1 = 0.1F
Fig.3
BH7659S / BH7659FS
Multimedia ICs
External dimensions (Units : mm)
BH7659S
28.0 0.3 32 17
BH7659FS
13.6 0.2 32 17
8.4 0.3
7.8 0.3
1
16 10.16
0.51Min.
5.4 0.2
3.2 0.2 4.7 0.3
1.8 0.1
1
16
0.11
0.3 0.1
1.778 0.5 0.1 0 ~ 15
0.8
0.36 0.1
0.3Min. 0.15
SDIP32
SSOP-A32
0.15 0.1
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0

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