HA12134A, HA12135A, HA12136A

Transcription

1 Dolby B-Type Noise Reduction System ADE B (Z) 3rd Edition Jun Description The HA12134A, HA12135A, HA12136A are silicon monolithic bipolar IC series providing dual channel Dolby B-type noise reduction system* in one chip. The circuit is used primarily to reduce the level of background noise introduced during recording and playback of audio signals on magnetic tape. HA12134A series provide the following functions and features. Functions Dual Dolby B-type NR processor NR ON/OFF control switch. Record (encode)/playback (decode) control switch. Features Separate record/playback input and output. Unprocessed signal output available in the encode and decode modes. Reduction of external components count. Small capacitor value for the reference voltage. NR ON/OFF switching and REC/PB switching are provided internally. 2-type package (DP-16, FP-16DA) Wide range of operating supply voltage. * Dolby is a trademark of Dolby Laboratories Licensing Corporation. A license from Dolby Laboratories Licensing Corporation is required for the use of this IC.

2 Ordering Information Type No Dolby Level (mvrms) Package HA12134A 300 DP-16 HA12134AF FP-16DA HA12135A 450 DP-16 HA12135AF FP-16DA HA12136A 580 DP-16 HA12136AF FP-16DA Block Diagram REC IN GND PB IN BIAS REC/PB PB OUT DET REC OUT 18 k 0.22 µ 22 k SW BUF AMP SIDE CHAIN BIAS SW BUF AMP SIDE CHAIN µ + 22 µ 5 22 k µ 8 REC IN V PB IN V REF NR ON/OFF PB OUT DET REC OUT Rev.3, Jun. 1999, page 2 of 27

3 Absolute Maximum Ratings (Ta = 25 C, Unless otherwise specified.) Item Symbol Rating Unit Note Supply voltage Vccmax 16 V Power dissipation Pd 250 mw Ta 85 C Operating temperature Topr 40 to +85 C Storage temperature Tstg 55 to +125 C Lead temperature TI 260 C Note 1 Note: 1. Soldering sec. Rev.3, Jun. 1999, page 3 of 27

4 Electrical Characteristics (Ta = 25 C, V = 12 V, Unless otherwise specified.) Item Symbol Min Typ Max Unit Test conditions Operating voltage HA12134A Vope V Enable functional operations HA12135A HA12136A Quiescent current I Q 7 ma No signal, REC NR-ON Voltage gain of HA12134A G VIA db Pin 1 Pin 6 input amp HA12135A (Pin 16 Pin 11) NR encode boost V 8 (9) (NR ON) V 8 (9) (NR OFF) T.H.D (REC) HA12136A Vout = 0 db, f = 1 khz ENC-1.4 k (1) ENC-1.4 k (2) ENC-5 k (1) ENC-5 k (2) ENC- k (1) ENC- k (2) T.H.D (REC) db f = 1.4 khz V 8 (9) (NR OFF) = 20 db db f = 1.4 khz V 8 (9) (NR OFF) = 30 db db f = 5 khz V 8 (9) (NR OFF) = 20 db db f = 5 khz V 8 (9) (NR OFF) = 30 db db f = khz V 8 (9) (NR OFF) = 0 db db f = khz V 8 (9) (NR OFF) = 40 db % f = 1 khz V 8 (9) (NR ON) = 0 db Signal handling HA12134A Vomax db f = 1 khz, V = 6.5 V HA12135A (REC) T.H.D = 1% V = 8.0 V HA12136A V = 9.5 V Signal/noise ratio (REC) Crosstalk (ENC) (Pin 8 Pin 9) Control voltage for REC/PB Control voltage for NR ON/OFF S/N (REC) CT R L L R db Rg = 5.1 kω weighted IR/ARM db f = 1 khz NR OFF REC 2.5 V V REC/PB 22 k 12 Measure PB ON 2.5 V V OFF Channel balance G VIA 0.0 db NR Measure ON/OFF 5 22k Rev.3, Jun. 1999, page 4 of 27

5 Electrical Characteristics (Ta = 25 C, V = 12 V, Unless otherwise specified.) (cont) Item Symbol Min Typ Max Unit Test conditions Offset voltage V 8 (9) (NR-ON) V 8 (9) (NR-OFF) Vorec mv REC mode V = 16.0 V Test Circuit SW1 OFF ON AUDIO SG HP339A or EQUIVALENT R To Vcc k C11 SW8 C9 + + REC PB P SW9 µ 0.68µ P R9 R8 C C8 R C R 18k 22k 0.22µ R11 1µ µ 5.1k L SW2 R SW3 R1 5.1k R2 k R P REC IN GND PB IN BIAS REC/ PB PB OUT REC NR PB IN Vcc PB IN VREF ON/OFF OUT C C3 C µ + 0µ C4 R3 1µ 22µ 22k C2 + ON OFF 0.68µ OFF ON SW4 SW DET DET REC OUT REC OUT 7 8 C5 0.22µ C7 + µ C6 + R7 k R6 k R P SW6 R5 µ R4 k SW7 SW5 AC VOLT METER HP 400E or EQUIVALENT DISTORTION ANALYZER HP339A or EQUIVALENT OSCILLOSCOPE TEKTRO 475 or EQUIVALENT NOISE METER WITH IR/ ARM FILTER DC POWER SOURCE Notes: 1. Resistor tolerances are ±1% 2. Capacitor tolerances are ±1% 3. Unit R: Ω C: F Rev.3, Jun. 1999, page 5 of 27

6 Pin Description (Ta = 25 C, V = 12 V, No signal, The value in the table show typical value.) Pin No. Symbol R (in) VDC Equivalent circuit Description 1, 16 REC IN 56 kω 6.0 V V Recording (encode) input 56k V /2 GND 2 V 12.0 V Power supply 3, 14 PB IN 0 kω 6.0 V V Playback (decode) input 0k V /2 4 V REF 6.0 V Reference voltage 5 NR ON/OFF V 1k GND 3 V BE Mode control pin for NR ON/OFF H NR ON L NR OFF 0k 4 V BE 6, 11 PB OUT 6.0 V V GND Playback (decode) output 0 0 GND Rev.3, Jun. 1999, page 6 of 27

7 Pin Description (Ta = 25 C, V = 12 V, No signal, The value in the table show typical value.) (cont) Pin No. Symbol R (in) VDC Equivalent circuit Description 7, DET 1.3 V V Time constant pin for the level detector GND 8, 9 REC OUT 6.0 V V Recording (encode) output 0 0 GND 12 REC/PB V 1k 3 V BE Mode control pin for REC/PB (encode/decode) H REC (encode) L PB (decode) 0k 4 V BE 13 BIAS V V GND Reference current input pin for the active filters GND 15 GND 0 V Ground Rev.3, Jun. 1999, page 7 of 27

8 No Signal HA12134A/5A/6A Quiescent current I Q [ma] NR-ON NR-OFF Supply voltage Vcc [V] Figure 1 Quiescent Current vs. Supply Voltage Control voltage (REC/PB) [V] REC Mode PB Mode HA12134A/5A/6A Supply voltage Vcc [V] Figure 2 REC/PB Control Voltage vs. Supply Voltage Rev.3, Jun. 1999, page 8 of 27

9 Control voltage (NR-ON/OFF) [V] NR-ON NR-OFF HA12134A/5A/6A Supply voltage Vcc [V] Figure 3 NR-ON/OFF Control Voltage vs. Supply Voltage 12 HA12136A 12 V 16 V Encode boost [db] db k 2 k 5 k k 20 k 50 k 0 k 40 db 9.5 V 30 db 20 db db Figure 4 Encode Boost vs. Frequency Rev.3, Jun. 1999, page 9 of 27

10 30 HA12136A PB Out NR ON/OFF Output gain Gv [db] 20 REC Out k 3 k 6 k k 30 k 60 k 0 k 300 k 600 k 1 M Figure 5 REC Mode Output Gain vs. Frequency Output gain Gv [db] HA12136A REC Out NR ON REC Out PB Out k 3 k 6 k k 30 k 60 k 0 k 300 k 600 k 1 M Figure 6 PB Mode Output Gain vs. Frequency Rev.3, Jun. 1999, page of 27

11 0 HA12136A Ripple rejection ratio R.R.R. [db] NR ON k 2 k 4 k 6 k k 20 k Figure 7 REC Mode Ripple Rejection Ratio vs. Frequency HA12136A Ripple rejection ratio R.R.R. [db] NR ON k 2 k 4 k k 20 k Figure 8 PB Mode Ripple Rejection Ratio vs. Frequency Rev.3, Jun. 1999, page 11 of 27

12 HA12136A 3 V = 12 V T.H.D. [%] khz 1 khz 0 Hz V out [db] Figure 9 REC NR-OFF Total Harmonic Distortion vs. Output Level HA12136A 3 T.H.D. [%] V = 12 V khz 1 khz 0 Hz V out [db] Figure REC NR-ON Total Harmonic Distortion vs. Output Level Rev.3, Jun. 1999, page 12 of 27

13 HA12136A 3 V = 12 V T.H.D. [%] khz 0 Hz khz V out [db] Figure 11 PB NR-OFF Total Harmonic Distortion vs. Output Level HA12136A 3 V = 12 V T.H.D. [%] khz 0 Hz khz V out [db] Figure 12 PB NR-ON Total Harmonic Distortion vs. Output Level Rev.3, Jun. 1999, page 13 of 27

14 Maximum output level V omax [db] HA12136A PB NR-ON REC NR-OFF PB NR-OFF REC NR-ON Supply voltage V Figure 13 Maximum Output Level vs. Supply Voltage [V] HA12136A PB NR-ON 80 REC NR-OFF S/N [db] PB NR-OFF REC NR-ON Supply voltage V [V] Figure 14 REC/PB Signal To Noise Ratio vs. Supply Voltage Rev.3, Jun. 1999, page 14 of 27

15 Encode boost [db] HA12135A 12 V 0 db k 2 k 5 k k 20 k 50 k 0 k 40 db 8.0 V 30 db 20 db db 16 V Figure 15 Encode Boost vs. Frequency 30 HA12135A PB Out NR ON/OFF Output gain Gv [db] 20 REC Out k 3 k 6 k k 30 k 60 k 0 k 300 k 600 k 1 M Figure 16 REC Mode Output Gain vs. Frequency Rev.3, Jun. 1999, page 15 of 27

16 Output gain Gv [db] HA12135A REC Out NR ON REC Out PB Out k 3 k 6 k k 30 k 60 k 0 k 300 k 600 k 1 M Figure 17 PB Mode Output Gain vs. Frequency HA12135A Ripple rejection ratio R.R.R. [db] NR ON k 2 k 4 k k 20 k Figure 18 REC Mode Ripple Rejection Ratio vs. Frequency Rev.3, Jun. 1999, page 16 of 27

17 HA12135A Ripple rejection ratio R.R.R. [db] NR ON k 2 k 4 k k 20 k Figure 19 PB Mode Ripple Rejection Ratio vs. Frequency HA12135A 3 V = 12 V T.H.D. [%] khz khz 0 Hz V out [db] Figure 20 REC NR-OFF Total Harmonic Distortion vs. Output Level Rev.3, Jun. 1999, page 17 of 27

18 HA12135A 3 T.H.D. [%] V = 12 V khz 1 khz 0 Hz V out [db] Figure 21 REC NR-ON total Harmonic Distortion vs. Output Level HA12135A 3 V = 12 V T.H.D. [%] Hz khz khz V out [db] Figure 22 PB NR-OFF Total Harmonic Distortion vs. Output Level Rev.3, Jun. 1999, page 18 of 27

19 HA12135A 3 V = 12 V T.H.D. [%] Hz 0.03 khz 1 khz V out [db] Figure 23 PB NR-ON Total Harmonic Distortion vs. Output Level Maximum output level V omax [db] HA12135A PB NR-ON REC NR-OFF PB NR-OFF REC NR-ON Supply voltage V [V] Figure 24 Maximum Output Level vs. Supply Voltage Rev.3, Jun. 1999, page 19 of 27

20 90 85 HA12135A PB NR-ON 80 REC NR-OFF S/N [db] PB NR-OFF REC NR-ON Supply voltage V [V] Figure 25 REC/PB Signal to Noise Ratio vs. Supply Voltage 12 HA12134A 12 V 16 V 40 db 6.5 V Encode boost [db] db k 2 k 5 k k 20 k 50 k 0 k 30 db 20 db db Figure 26 Encode Boost vs. Frequency Rev.3, Jun. 1999, page 20 of 27

21 30 HA12134A PB Out NR ON/OFF Output gain Gv [db] 20 REC Out k 3 k 6 k k 30 k 60 k 0 k 300 k 600 k 1 M Figure 27 REC Mode Output Gain vs. Frequency Output gain Gv [db] HA12134A REC Out NR ON REC Out PB Out k 3 k 6 k k 30 k 60 k 0 k 300 k 600 k 1 M Figure 28 PB Mode Output Gain vs. Frequency Rev.3, Jun. 1999, page 21 of 27

22 HA12134A Ripple rejection ratio R.R.R. [db] NR ON k 2 k 4 k k 20 k Figure 29 REC Mode Ripple Rejection Ratio vs. Frequency HA12134A Ripple rejection ratio R.R.R. [db] NR ON k 2 k 4 k k 20 k Figure 30 PB Mode Ripple Rejection Ratio vs. Frequency Rev.3, Jun. 1999, page 22 of 27

23 HA12134A 3 V = 12 V T.H.D. [%] khz khz 0 Hz V out [db] Figure 31 REC NR-OFF Total Harmonic Distortion vs. Output Level HA12134A 3 T.H.D. [%] V = 12 V khz 0 Hz 1 khz V out [db] Figure 32 REC NR-ON Total Harmonic Distortion vs. Output Level Rev.3, Jun. 1999, page 23 of 27

24 HA12134A 3 V = 12 V T.H.D. [%] khz 0 Hz khz V out [db] Figure 33 PB NR-OFF Total Harmonic Distortion vs. Output Level HA12134A 3 V = 12 V T.H.D. [%] khz 0 Hz khz V out [db] Figure 34 PB NR-ON Total Harmonic Distortion vs. Output Level Rev.3, Jun. 1999, page 24 of 27

25 26 HA12134A Maximum output level V omax [db] PB NR-ON REC NR-OFF, PB NR-OFF REC NR-ON Supply voltage V [V] Figure 35 Maximum Output Level vs. Supply Voltage HA12134A PB NR-ON S/N [db] REC NR-OFF PB NR-OFF REC NR-ON Supply voltage V [V] Figure 36 REC/PB Signal To Noise Ratio vs. Supply Voltage Rev.3, Jun. 1999, page 25 of 27

26 Package Dimesnsions Max 16 9 Unit: mm Max Max 2.54 ± ± Min 2.54 Min 5.06 Max Hitachi Code JEDEC EIAJ Weight (reference value) DP-16 Conforms Conforms 7 g Unit: mm.06.5 Max Max 1.27 *0.42 ± ± ± Max 0.15 *0.22 ± ± ± M *Dimension including the plating thickness Base material dimension Hitachi Code JEDEC EIAJ Weight (reference value) FP-16DA Conforms 0.24 g Rev.3, Jun. 1999, page 26 of 27

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