5.1ch Surround Processor

Transcription

1 5.1ch Surround Processor GENERAL DESCRIPTION The NJW1186 is an Surround Processor for 5.1ch speaker system regenarating Center, Surround and Subwoofer channel signal from normal stereo signal input. The NJW1186 contains Passive Matrix circuit, BPF for center channel, LPF for subwoofer, simulated stereo function for surround channel and trimmers for each channel. All of internal status and variables are controlled by I 2 C BUS. It is suitable for TV set, Home Theater and the others. PACKAGE OUTLINE NJW1186M FEATURES Operating Voltage 7.5 to 13V I 2 C BUS Interface Passive Matrix Surround Circuit Trimmer & BPF for Center Channel Trimmer & LPF for Subwoofer Channel Trimmer & Simulated Stereo Function for Surround Channel BiCMOS Technology Package Outline DMP20 BLOCK DIAGRAM Lout Rout Lin Rin LSout Passive Matrix Simulated Stereo RSout + + BPF Cout LPF V+ Vref GND Bias Control CSU CCE CSW 1

2 PIN CONFIGURATION 1 Filter 20 2 SWfilin CSW 19 3 SW out CCE 18 4 RSout Vrefin 17 5 Rin V Lin GND 15 7 LSout 14 8 C out 13 9 CFilin CSU Cout PS 11 No. SYMBOL FUNCTION 1 Subwoofer Channel Output 2 SWFilin LPF for Subwoofer Channel 3 SW out Subwoofer Channel Trimmer Output 4 RSout Right Surround Channel Output 5 Rin Right Channel Input 6 Lin Left Channel Input 7 LSout Left Surround Channel Output 8 C out Center Channel Trimmer Output 9 CFilin BPF for Center Channel 10 Cout Center Channel Output 11 PS Filter for Simulated Stereo 12 CSU Pop Noise Reduction for Left Surround & Right Surround Channel Trimmer 13 I 2 C Bus Data Input 14 I 2 C Bus Clock Input 15 GND Ground 16 V + Power Supply 17 Vrefin Reference Voltage Stabilizing Capacitor 18 CCE Pop Noise Reduction for Center Channel Trimmer 19 CSW Pop Noise Reduction for Subwoofer Channel Trimmer 20 Filter Filter for Surround Channel 2

3 ABSOLUTE MAXIMUM RATING (Ta=25 C) PARAMETER SYMBOL RATING UNIT Supply Voltage V + 15 V Power Dissipation P D 350 mw Maximum Input Voltage V IM 0 to V+ V Operating Temperature Range Topr 40 to +85 C Storage Temperature Range Tstg 40 to +125 C RECOMMENDED OPERATING CONDITION PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Operating Voltage V V ELECTRICAL CHARACTERISTICS (Ta=25 C, V+=9V, Rg=600Ω, R L=47kΩ, SIM= 0, SRSEL= 1 unless otherwise specified) Power Supply PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Supply Current I CC No Signal 6 10 ma Reference Voltage V REF No Signal V AC CHARACTERISTICS PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Input Impedance Ri 24 kω Center Channel Output (Lin=Rin=100mVrms, f=1khz unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Maximum Input Voltage V IMC THD=7% Vrms Voltage Gain G VC BCC= 0, CTRIM= 0000, CMUTE= Maximum Gain Minimum Gain G VMAXC G VMINC BCC= 1, CTRIM= 1111, CMUTE= 1 BCC= 0, CTRIM= 1111, CMUTE= db Mute Level G VMUTEC CMUTE= 0, Lin= 1Vrms, Rin= Total Harmonic Distortion THD C BCC= 0, CTRIM= 0000, CMUTE= 1, BW=400Hz to 30kHz, Lin=Rin=500mVrms % Output Noise 1 Output Noise 2 V NO1C V NO2C BCC= 0, CTRIM= 0000, CMUTE= 1, No Signal, AWeighted, Rg=0Ω CMUTE= 0, No Signal, AWeighted, Rg=0Ω 94 (19.6) 106 (5.0) 85 (56.2) 96 (15.8) dbv (µvrms) 3.

4 Subwoofer Channel Output (Lin=Rin=100mVrms, f=1khz unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Maximum Input Voltage V IMW THD=7% Vrms Voltage Gain G VW BCW= 0, WTRIM= 0000, WMUTE= Maximum Gain Minimum Gain G VMAXW G VMINW BCW= 1, WTRIM= 1111, CMUTE= 1 BCW= 0, WTRIM= 1111, WMUTE= db Mute Level G VMUTEW WMUTE= 0, Lin= 1Vrms, Rin= Total Harmonic Distortion THD W BCW= 0, WTRIM= 0000, WMUTE= 1, BW=400Hz to 30kHz, Lin=Rin=500mVrms % Output Noise 1 Output Noise 2 V NO1W V NO2W BCW= 0, WTRIM= 0000, WMUTE= 1, No Signal, AWeighted, Rg=0Ω WMUTE= 0, No Signal, AWeighted, Rg=0Ω 94 (19.6) 106 (5.0) 85 (56.2) 96 (15.8) dbv (µvrms) Left Surround Channel Output (Lin= 100mVrms, Rin=0, f=1khz unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Maximum Input Voltage V IMLS THD=5% Vrms Bypass Gain G VPASSL SRSEL=Bypass, Lin=Rin=100mVrms Voltage Gain G VLS BCS= 0, STRIM= 0000, SMUTE= 1, f=100hz Maximum Gain G VMAXLS BCS= 1, STRIM= 1111, SMUTE= 1, f=100hz db Minimum Gain G VMINLS BCS= 0, STRIM= 1111, SMUTE= 1, f=100hz 15.0 Mute Level G VMUTELS SMUTE= 0, Lin=1Vrms, Rin= Total Harmonic Distortion THD LS BCS= 0, STRIM= 0000, SMUTE= 1, BW=400Hz to 30kHz, Lin=500mVrms, Rin= % Output Noise 1 Output Noise 2 V NO1LS V NO2LS BCS= 0, STRIM= 0000, SMUTE= 1, No Signal, AWeighted, Rg=0Ω SMUTE= 0, No Signal, AWeighted, Rg=0Ω 94 (19.6) 106 (5.0) 85 (56.2) 96 (15.8) dbv (µvrms) 4

5 Right Surround Channel Output (Lin=0, Rin=100mVrms, f=1khz unless otherwise specified) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Maximum Input Voltage V IMRS THD=5% Vrms Bypass Gain G VPASSR SRSEL=Bypass, Lin=Rin=100mVrms Voltage Gain G VRS BCS= 0, STRIM= 0000, SMUTE= 1, f=100hz Maximum Gain G VMAXRS BCS= 1, STRIM= 1111, SMUTE= 1, f=100hz db Minimum Gain G VMINRS BCS= 0, STRIM= 1111, SMUTE= 1, f=100hz 15.0 Mute Level G VMUTERS SMUTE= 0, Rin=1Vrms, Lin= Total Harmonic Distortion THD RS BCS= 0, STRIM= 0000, SMUTE= 1, BW=400Hz to 30kHz, Rin=500mVrms, Lin= % Output Noise 1 Output Noise 2 V NO1RS V NO2RS BCS= 0, STRIM= 0000, SMUTE= 1, No Signal, AWeighted, Rg=0Ω SMUTE= 0, No Signal, AWeighted, Rg=0Ω 94 (19.6) 106 (5.0) 85 (56.2) 96 (15.8) dbv (µvrms) BW: Band Width 5.

6 6 MEASUREMENT CIRCUIT Lin CFilin Lin C'out CCE Filter RSout CSW 0.47µF Vrefin V+ 4.7nF GND SW'out SWfilin Rin PS Cout CSU LSout V+ LSOUT Cout 0.47µF 100nF NJW1186 Rin RSOUT

7 APPLICATION CIRCUIT 1 1 Filter nF RSOUT Rin Lin LSOUT Cout 33kΩ 100nF 0.47µF 0.47µF 3.3nF 2.2nF 2 SWfilin 33kΩ 3 SW'out 33kΩ 4 RSout 5 Rin 6 Lin 7 LSout 24kΩ 8 C'out 3.3nF 9 CFilin 47kΩ NJW1186 CSW CCE Vrefin V GND CSU Cout PS nF V+ APPLICATION CIRCUIT 2 LPF unused setting No Connect Passive Matrix unused setting 1 Filter 20 RSOUT Rin Lin LSOUT Cout 0.47µF 0.47µF 2 SWfilin 3 SW'out 4 RSout 5 Rin 6 Lin 7 LSout 8 C'out 9 CFilin NJW1186 CSW CCE Vrefin V GND CSU Cout PS 11 V+ BPF unused setting No Connect Simulated Stereo unused setting 7.

8 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT TERMINAL DC VOLTAGE 1 10 Cout Subwoofer Channel Output Center Channel Output 100Ω Cout V + /2 2 9 SWFilin CFilin LPF for Subwoofer Channel LPF for Center Channel SWFilin CFilin 3 8 SW out C out Subwoofer Channel Trimmer Output Center Channel Trimmer Output 100Ω SW'out C'out V + / RSout PS Filter Right Surround Channel Output Filter for Simulated Stereo Filter for Surround Channel 30kΩ 100Ω 30kΩ RSout V + /2 Filter PS 8

9 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT TERMINAL DC VOLTAGE 5 6 Rin Lin Right Channel Input Left Channel Input Rin Lin 4 4 V + /2 7 LSout Left Surround Channel Output 4 100Ω V + /2 LSout CSU CCE CSW Pop Noise Reduction for Left Surround & Right Surround Channel Trimmer Pop Noise Reduction for Center Channel Trimmer Pop Noise Reduction for Subwoofer Channel Trimmer 10kΩ CSU CCE CSW V + / I 2 C Bus Data Input I 2 C Bus Clock Input 4kΩ 9.

10 ! TERMINAL DESCRIPTION PIN NO. SYMBOL FUNCTION EQUIVALENT CIRCUIT TERMINAL DC VOLTAGE V GND V + Ground Power Supply 12kΩ GND 200kΩ 17 Vrefin Reference Voltage Stabilizing Capacitor Vrefin V + /2 200kΩ 10

11 DEFINITION OF I 2 C REGISTER I 2 C BUS FORMAT MSB LSB MSB LSB MSB LSB MSB LSB S Slave Address A Data (00H) A Data (01H) A Data (02H) A P 1bit 8bit 1bit 8bit 1bit 8bit 1bit 8bit 1bit 1bit S: Starting Term A: Acknowledge Bit P: Ending Term SLAVE ADDRESS MSB R/W LSB R/W=0: Write mode for register setting R/W=1: Not available CONTROL REGISTER TABLE Address BIT D7 D6 D5 D4 D3 D2 D1 D0 00H BCS STRIM SMUTE SIM SRSEL 01H BCC CTRIM CMUTE Don't Care 02H BCW WTRIM WMUTE Don't Care CONTROL REGISTER DEFAULT VALUE Address BIT D7 D6 D5 D4 D3 D2 D1 D0 00H H H

12 !TIMING ON THE I 2 C BUS (,) t f t r t SU:DAT t f t HD:STA t SP t r t BUF t HD:STA t SU:STA t SU:STO S t LOW t HD:DAT t HIGH Sr P S!CHARACTERISTICS OF I/O STAGES FOR I 2 C BUS (,) I 2 C BUS Load Conditions STANDARD MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND) FAST MODE : Pull up resistance 4kΩ (Connected to +5V), Load capacitance 50pF (Connected to GND) Standard mode Fast mode PARAMETER SYMBOL MIN. TYP. MAX. MIN. TYP. MAX. UNIT Low Level Input Voltage V IL V High Level Input Voltage V IH V Low level output voltage (3mA at pin) V OL V Input current each I/O pin with an input voltage between 0.1V DD and 0.9V DDmax I i µa 12

13 !CHARACTERISTICS OF BUS LINES (,) FOR I 2 CBUS DEVICES PARAMETER SYMBOL Standard mode Fast mode MIN. TYP. MAX. MIN. TYP. MAX. UNIT clock frequency f khz Hold time (repeated) START condition. t HD:STA µs Low period of the clock t LOW µs High period of the clock t HIGH µs Setup time for a repeated START condition t SU:STA µs Data hold time NOTE) t HD:DAT 0 0 µs Data setup time t SU:DAT ns Rise time of both and signals t r ns Fall time of both and signals t f ns Setup time for STOP condition t SU:STO µs Bus free time between a STOP and START condition t BUF µs Capacitive load for each bus line C b pf Noise margin at the Low level V nl V Noise margin at the High level V nh 1 1 V NOTE). Data hold time : t HD:DAT C b ; total capacitance of one bus line in pf. Please hold the Data Hold Time (t HD:DAT) to 300ns or more to avoid status of unstable at falling edge. The block in the NJW1186 does not hold data. Add external datadelaycircuit of the terminal, in case of not providing a hold time of at least 300nsec for the in the master device. The timeconsists of the datadelaycircuit of the terminal are as follows. (a) Low level! High level : (b) High level! Low level : T LH R P*C D T HL R D*C D In addition, Schottky barrier diode (SBD) influences a Low level at the Acknowledge. Therefore choose the low forward voltage (Vf) as much as possible. V DD R P R P MASTER SBD NJW1186 R D C D 13.

14 I 2 C CONTROL COMMAND DESCRIPTION a) SURROUND CHANNEL SETTINGS Address BIT D7 D6 D5 D4 D3 D2 D1 D0 00H BCS STRIM SMUTE SIM SRSEL BCS: Boost or Cut Select for Surround Channel Trimmer 0 : Cut 1 : Boost STRIM: Trimmer Level for Surround Channel Cut Level : 15 to 0dB(1dB/step) Boost Level : 0 to +15dB(1dB/step) SMUTE: Mute for Surround Channel Trimmer 0 : Mute ON 1 : Mute OFF SIM: Simulated Stereo Function for Surround Channel 0 : Normal 1 : Wide SRSEL: Surround Channel Signal Selector 0 : Bypass (The output signal as same as L/Rch input signal.) 1 : Surround Settings b) CENTER CHANNEL SETTINGS BIT Address D7 D6 D5 D4 D3 D2 D1 D0 01H BCC CTRIM CMUTE Don t Care BCC: Boost or Cut Select for Center Channel Trimmer 0 : Cut 1 : Boost CTRIM: Trimmer Level for Center Channel Cut Level : 15 to 0dB(1dB/step) Boost Level : 0 to +15dB(1dB/step) CMUTE: Mute for Center Channel Trimmer 0 : Mute ON 1 : Mute OFF c) SUBWOOFER CHANNEL SETTINGS BIT Address D7 D6 D5 D4 D3 D2 D1 D0 02H BCW WTRIM WMUTE Don t Care BCW: Boost or Cut Select for Subwoofer Channel Trimmer 0 : Cut 1 : Boost WTRIM: Trimmer Level for Subwoofer Channel Cut Level : 15 to 0dB(1dB/step) Boost Level : 0 to +15dB(1dB/step) WMUTE: Mute for Subwoofer Channel Trimmer 0 : Mute ON 1 : Mute OFF 14

15 SURROUND CHANNEL TRIMMER SETTINGS (Address: 00H) Trimmer Cut or Boost BCS D7 Cut 0 Boost 1 STRIM Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D CENTER CHANNEL TRIMMER SETTINGS (Address: 01H) Trimmer Cut or Boost BCC D7 Cut 0 Boost 1 CTRIM Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D

16 SUBWOOWER CHANNEL TRIMMER SETTINGS (Address: 02H) Trimmer Cut or Boost BCW D7 Cut 0 Boost 1 WTRIM Cut Gain(dB) Boost Gain(dB) D6 D5 D4 D [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. 16

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