BD3841FS

Sound Processors for Home Theater Systems 6ch / 9ch Stereo Input Selectors BD3843FS,BD3841FS No.10081EAT07 ●Description BD3843FS is a function switch IC with two 6ch (9ch for BD3841FS) inputs. It can independently control outputs of 2 systems: 2ch REC output (3ch for BD3841FS) and 1ch line output. Therefore, it is can be used for 2nd room entertainment and 2nd source recording. BD3843FS has excellent cross-talk characteristics between channels and selectors. Low distortion, and low noise are realized by a basic pattern layout. ●Features 1) 2 room entertainment / 2 source recording. 2) 6ch volume LSI BD3813KS/BD3815KS can be controlled simultaneously by the serial control bus. 3) 7ch volume LSI BD3816K1, BD3817KS with BD3843FS can be controlled simultaneously by the serial control bus. 4) 14ch input is available by combining 2chips (BD3843FS and BD3841FS). 5) Excellent cross-talk characteristics between channels by basic pattern layout. 6) Built-in buffer amplifier. 7) 2-line serial control bus (for both 3.3V and 5V). 8) Operated by single and dual power sources. ●Applications AV receivers, home theater systems, mini-audio systems, and TVs. ●Product lineup Parameter Input selector REC output Package ●Absolute maximum ratings (Ta=25℃) Parameter Symbol VCC Power Supply Voltage VEE Input signal voltage Power Dissipation Operating temperature Storage temperature *1 BD3843FS 6 2 SSOP-A24 BD3841FS 9 3 SSOP-A32 Ratings 7.5 *1 Unit V -7.5 VCC+0.3～VEE-0.3 800 (BD3843FS) 950 (BD3841FS) －20～+75 －55～+125 *2 V mW ℃ ℃ VIN Pd Topr Tastg *2 Even in the specified range of Power Supply Voltage, applying voltage only to the VCC side may cause an excessive current may cause permanent damage to the IC. When starting up power supplies, VEE and VCC should be powered on simultaneously, or VEE first followed by VCC. Reduced by 8 mW/℃ over 25℃ (BD3843FS), when installed on the standard board (size: 70 x 70 x 1.6mm). Reduced by 7.7 mW/℃ over 25℃ (BD3841FS), when installed on the standard board (size: 70 x 70 x 1.6mm). www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/9 2010.06 - Rev.A BD3843FS,BD3841FS ●Operating range Must function normally at Ta = 25℃, Part No. Parameter Action power source voltage (both power sources) Action power source voltage (single power source) Action power source voltage (both power sources) Action power source voltage (single power source) Symbol VCC VEE VCC- VEE VCC VEE VCC- VEE Ratings Min. 4 -7.3 8 5 -7.3 10 Typ. 7 -7 14 7 -7 14 Max. 7.3 -4 14.6 7.3 -5 14.6 Technical Note Unit BD3843FS V BD3841FS V ●Electrical characteristics Ta=25℃, VCC=7V, VEE=7V, f=1kHz, Vin=1Vrms, RL=10kΩ, Rg=600Ω, unless otherwise noted. Limits Symbol Unit Conditions Parameter Min. Typ. Max. VCC ― 3 10 Circuit current IQ mA No signal VEE -10 -3 ― Output voltage gain 1ch Output voltage gain 2ch Total harmonic distortion ratio 1ch Total harmonic distortion ratio 2ch Maximum output voltage 1ch Output Maximum output voltage 2ch Output noise voltage 1ch Output noise voltage 2ch Cross-talk between channels 1ch→2ch Cross-talk between channels 2ch→1ch Cross-talk between selectors 1ch Cross-talk between selectors 2ch R voltage gain 1ch R voltage gain 2ch R Total harmonic distortion ratio 1ch Gv1 Gv2 THD1 THD2 Vomax1 Vomax2 Vno1 Vno2 CTC12 CTC21 CTS1 CTS2 GVR1 GVR2 THDR1 THDR2 VnoR1 VnoR2 RoutR1 RoutR2 -2 -2 ― ― 3.4 3.4 ― ― ― ― ― ― -2 -2 ― ― ― ― ― ― 0 0 0.004 0.004 4.2 4.2 1 1 -95 -95 -95 -95 0 0 0.01 0.01 1 1 50 50 2 2 0.05 0.05 ― ― 5 5 -80 -80 -80 -80 2 2 0.09 0.09 5 5 100 100 dB dB % % Vrms Vrms µVrms µVrms dB dB dB dB dB dB % % µVms µVms Ω Ω BW=400～30kHz BW=400～30kHz THD=1% THD=1% Rg=0Ω, BW=IHF-A Rg=0Ω, BW=IHF-A Rg=0Ω, BW=IHF-A Rg=0Ω, BW=IHF-A Rg=0Ω, BW=IHF-A Rg=0Ω, BW=IHF-A RL=47kΩ, RL=47kΩ, RL=47kΩ, BW=400～30kHz RL=47kΩ, BW=400～30kHz Rg=0Ω, BW=IHF-A Rg=0Ω, BW=IHF-A REC output R Total harmonic distortion ratio 2ch R output noise voltage 1ch R output noise voltage 2ch R output impedance 1ch R output impedance 2ch * Note: This IC is not designed to be radiation-resistant. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 2/9 2010.06 - Rev.A BD3843FS,BD3841FS ●Timing chart 1. Signal timing standards ・Data is read at the rise of clock. ・Latch is read at the fall of clock. ・End latch signal at LOW. * To avoid malfunctions, clock and data signals must terminate with the LOW state. 1byte=17bit Technical Note CL （CLOCK） tsu 90％ 90％ 90％ 90％ twc 10％ twc 10％ 10％ thd ts th tsd thd tsl thl DA DATA LATCH 90％ twd 90％ twh 10％ 10％ 90％ 90％ twl 90％ DATA DATA 10％ LATCH Finish at Low Fig.1 Parameter Minimum clock width Minimum data width Minimum latch width LOW hold width Data setup time (DATA→CLK) Data hold time (CLK→DATA) Latch setup time (CLK→LATCH) Latch hold time (DATA→LATCH) Latch low setup time Latch low hold time Symbol twc twd twl twh tsd thd tsl thl ts th Limit Min. 2.0 2.0 2.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 Typ. － － － － － － － － － － Max. － － － － － － － － － － Unit µs µs µs µs µs µs µs µs µs µs 2. Voltage standards of control signal Parameter “H” input voltage “L” input voltage Conditions Vcc=5～7.3V VEE=-5～-7.3V Limits Min. 2.2 0 Typ. － － Max.(≦Vcc) 5.5 1.0 Unit V V www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 3/9 2010.06 - Rev.A BD3843FS,BD3841FS Technical Note 3. Control data format list (1) BD3843FS control data format Data input direction MSB D16 Data INPUT FUNCTION 1 INPUT FUNCTION 2 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 LSB D0 RECA RECB 0:OFF 0:OFF 1:ON 1:ON * 0 0 0 Select Address (2) BD3841FS control data format Data input direction MSB D16 Data INPUT FUNCTION 1 *:Don’t care. LSB D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 INPUT FUNCTION 2 RECA RECB RECC 0:OFF 0:OFF 0:OFF 1:ON 1:ON 1:ON * * * 1 0 1 (Ex.) MSB Data input direction LSB L "L" represents latch. Data www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 4/9 2010.06 - Rev.A BD3843FS,BD3841FS ●Block diagram, application circuit www.rohm.com F-SW1 32 1 2)BD3841FS (both power sources) 1)BD3843FS) (both power sources) INA1 10KΩ 47K 31 F-SW2 2 INA2 CL DA 1 LOGIC 47K 1 0K Ω 3 © 2010 ROHM Co., Ltd. All rights reserved. F-SW1 24 47K I NB1 30 47K INA1 DGND 10K 23 F-SW2 2 4 I NB2 29 47μ 47K 3 V EE 47K 28 INA2 INB1 47K CL LOGIC I NC1 10K 22 5 47K DA 21 27 6 INC2 4 V cc 47μ 47K 47K 26 INB2 5 VEE 47μ 20 7 I ND1 47K 47K 47K RECA1 INC1 6 GND 19 8 IND2 RECA2 25 Fig.3 INC2 47K 7 Fig.2 5/9 47K 47K VCC 47μ 18 9 I NE1 RECB1 24 IND1 47K 8 RECA1 47K 17 47K 47K I NE2 RECB2 23 10 IND2 47K RECA2 47K 9 16 47K 47K INF1 22 RECC1 11 INE1 47K RECB1 47K 10 15 47K 47K INF2 21 47K RECC2 O UT1 O UT2 12 INE2 47K RECB2 47K 14 11 47K 20 ING1 INF1 47K OUT1 12 13 13 47K I NG2 19 INF2 47K OUT2 14 47K 18 INH1 47K 15 47K 17 I NI1 I NI2 I NH2 47K 16 UNIT RESISTANCE：Ω CAPACITOR：F * F-SW1：INPUT FUNCTION1 F-SW2：INPUT FUNCTION2 47K Technical Note 2010.06 - Rev.A * BD3843FS,BD3841FS www.rohm.com F-SW1 32 1 4)BD3841FS (single power source) 3)BD3843FS (single power source) INA1 10K Ω 10μ 31 47K F-SW2 2 INA2 CL 10μ 47K 1 LOGIC 10KΩ F-SW1 24 © 2010 ROHM Co., Ltd. All rights reserved. DA 10μ 47K F-SW1：INPUT FUNCTION1 F-SW2：INPUT FUNCTION2 INA1 30 I NB1 DGND 10K 23 3 10μ 47K F-SW2 2 I NB2 10μ 47K 3 INA2 INB1 10μ 47K 4 CL 29 4 LOGIC 10μ 47K 10K 22 I NC1 V cc 10μ 47K 5 10μ 1/2Vcc DA 21 28 5 47K INC2 47μ INB2 INC1 10μ 47K 6 GND 20 27 6 10μ 47K I ND1 47K 10μ RECA1 1/2VCC 19 26 7 10μ 47K IN D2 R ECA 2 47K 1 0μ 7 INC2 10μ 47K VCC 47μ 18 25 8 Fig.5 Fig.4 6/9 RECB1 10μ 47K 8 10μ 47K INE1 24 47K 10μ IND1 IND2 10μ 47K RECA1 47K 10μ 17 9 10μ 47K INE2 23 47K 10μ RECB2 RECC1 RECA2 47K 10μ 16 9 10 10μ 47K I NF1 47K 10μ INE1 10μ 47K RECB1 47K 10μ 10 15 11 22 10μ 47K INF2 21 47K 10μ RECC2 O UT1 OUT2 10μ INE2 10μ 47K RECB2 47K 10μ 14 11 12 10μ 20 47K 10μ I NG1 INF1 10μ 47K OUT1 10μ 12 13 13 10μ 19 47K ING2 INI1 47K 10μ 18 INF2 10μ 47K OUT2 10μ 14 10μ 47K INH1 15 10μ 17 47K I NH2 16 10μ INI2 47K 10μ UNIT RESISTANCE：Ω CAPACITOR：F RESISTANCE：Ω 47K Technical Note 2010.06 - Rev.A BD3843FS,BD3841FS ●Reference data 5 Technical Note 10 10 1 CIRCUIT CURRENT (mA) 3 2 1 0 -1 -2 -3 -4 -5 0 2 4 6 VCC OUTPUT VOLTAGE (Vrms) 4 1 THD+N （%） 0.01 0.1 1 10 0.1 0.01 0.001 0.1 VEE 0.01 0.001 0.001 8 10 0.0001 0.001 0.01 0.1 1 10 VCC,VEE (V) INPUT VOLTAGE (Vrms) INPUT VOLTAGE (Vrms) Fig.6 Circuit Current - Supply Voltage 2 Fig.7 Output Voltage - Input Voltage 5.0 Fig.8 Total Harmonic Distortion - Input Voltage 10 4.0 OUTPUT VOLTAGE (Vrms) NOISE (μVrms) 1 GAIN(dB) 1 3.0 0 0.1 2.0 0.01 -1 1.0 -2 10 100 1000 10000 FREQUENCY(Hz) 100000 0.0 0 2 4 6 8 10 0.001 0.001 0.01 0.1 1 10 VCC,VEE (V) INPUT VOLTAGE (Vrms) Fig.9 Voltage Gain Frequency 10 Fig.10 Output Noise Voltage – Supply Voltage 2 Fig.11 REC Output Voltage Input Voltage 5.0 1 1 4.0 NOISE(μVrms) THD+N (%) 0.1 GAIN (dB) 3.0 0 0.01 2.0 0.001 -1 1.0 0.0001 0.001 0.01 0.1 1 10 -2 10 100 1000 10000 100000 0.0 0 2 4 6 8 10 INPUT VOLTAGE (Vrms) FREQUENCY (Hz) VCC,VEE(V) Fig.12 REC Total Harmonic Distortion - Input Voltage Fig.13 REC Voltage Gain Frequency Fig.14 REC Output Noise Supply Voltage www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 7/9 2010.06 - Rev.A BD3843FS,BD3841FS ●Notes for use Technical Note 1. Numbers and data in entries are representative design values and are not guaranteed values of the items. 2. Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. 3. Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. 4. VEE potential Make the VEE pin voltage such that it is the lowest voltage even when operating below it. Actually confirm that the voltage of each pin does not become a lower voltage than the VEE pin, including transient phenomena. 5. Thermal design Perform thermal design, in which there are adequate margins, by taking into account the power dissipation (Pd) in actual states of use. 6. Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. 7. Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. 8. Operating Voltage Range and Operating Temperature Range Circuit function actions are guaranteed within the action voltage range and the action temperature range. However, the specific values of the electrical characteristics are guaranteed under the specified conditions of the electrical characteristics. Therefore, carry out set considerations in sufficient consideration of IC characteristic fluctuations.. 9. Power ON/OFF (a) At power ON/OFF, a shock sound will be generated. Therefore, use MUTE on the set. (b) When turning on power supplies, VEE and VCC should be powered on simultaneously, or VEE first followed by VCC. If the VCC side is started up first, an excessive current may flow from VCC to VEE. 10. Serial control For the CL and DA terminals, the patterned and other wirings should be routed as not to cause interference with the analog-signal-related lines. 11. Function switching For all functions, other than Master Volume, Treble, and Bass Gain Settings, use MUTE on the set. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 8/9 2010.06 - Rev.A BD3843FS,BD3841FS ●Ordering part number Technical Note B D 3 Part No. 3843 3841 8 4 3 F S - E 2 Part No. Package FS: SSOP-A24 SSOP-A32 Packaging and forming specification None: Tray SSOP-A24 10 ± 0.2 (MAX 10.35 include BURR) 24 13 +6° 4° −4° Tape Quantity Embossed carrier tape 2000pcs E2 The direction is the 1pin of product is at the upper left when you hold 7.8 ± 0.3 5.4 ± 0.2 1 12 0.1±0.1 1.8±0.1 +0.1 0.17 −0.05 1.2 ± 0.15 Direction of feed 0.5 ± 0.2 ( reel on the left hand and you pull out the tape on the right hand ) 0.8 0.1 0.38±0.1 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. SSOP-A32 13.6 ± 0.2 (MAX 13.95 include BURR) 32 17 Tape Quantity Direction of feed 0.3MIN Embossed carrier tape 2000pcs E2 The direction is the 1pin of product is at the upper left when you hold 7.8 ± 0.3 5.4 ± 0.2 ( reel on the left hand and you pull out the tape on the right hand ) 1 16 1.8 ± 0.1 0.15 ± 0.1 0.11 0.36 ± 0.1 0.8 0.1 1pin (Unit : mm) Direction of feed Reel ∗ Order quantity needs to be multiple of the minimum quantity. www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 9/9 2010.06 - Rev.A Notice Notes No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. 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