cxa1998aq Sony Electronics, cxa1998aq Datasheet
cxa1998aq
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cxa1998aq Summary of contents
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... Recording/Playback Equalizer Amplifier For the availability of this product, please contact the sales office. Description The CXA1998AQ developed for analog signal processing in tape recorders. Processing for both the recording and playback systems is achieved on one chip. Features • 11-bit serial data interface • ...
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... PB INA1 43 PB INB1 FB11 46 PB FB21 47 PB OUT1 FP CAL GND 10k – 2 – CXA1998AQ LATCH GND GND D3 20 PL2 GND D4 19 PL1 GND D5 18 BPB GND ...
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... 200 500 — 147 500 5k 100k GND GND – 3 – CXA1998AQ = 8V 5V, no signal, RESET ON) DD Description Vcc Connects a resistor for determining the high-band peak gain of recording equalizer. Reference setting resistance is 27k . V CC Deck A equalizer switch. Low: 120µs EQ High: 70µ ...
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... 500 2 8 147 147 500 29 10 GND GND – 4 – CXA1998AQ Description AGC signal input Input resistance changes between 50k and 100k . AGC functions when the signal of –30dBm or more is input to AGC for AGC ON. (External 47µF//300k for Pin 4) 23186 Recording equalizer input ...
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... GND GND Vcc Vcc — 12 10k GND GND – 5 – CXA1998AQ Description V CC Connects a resistor for determining AMS signal detection level and a capacitor for determining HPF cut- off frequency. GND AMS block ground. Vcc Connects time constant for AMS detection ...
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... GND 21 GND 22 — 23 – 6 – CXA1998AQ Description V DD Connects a capacitor for setting time constant for playback mute ON/OFF switching. Connects a capacitor for setting time constant for recording GND mute ON/OFF switching. Output for recording mute ON/OFF switch ...
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... V CC 30k 2 147 60k 34 45k 30k GND GND — 35 – 7 – CXA1998AQ Description Serial data interface V latch input. DD 30k Serial data interface reset input. Low: Reset. 30k At this time serial data outputs (Pins 15 to 22) are all open (high ...
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... GND 147 3 39 — 46 GND GND – 8 – CXA1998AQ Description V CC Connects a resistor and capacitor for obtaining stable voltage with power 250 supply ripple rejected. Vcc Connects a resistor (12k ) for determining equalizer gains. Connects a resistor for determining the high- band peak frequency of recording equalizer ...
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... The resistance of open collector outputs (Pins 15 to 22) can be connected Vcc. I/O Equivalent circuit resistance 10k 105k 147 30p 70k 70k GND GND – 9 – CXA1998AQ Description V CC RFS Playback equalizer CC negative feedback. 1k 210k 1k 147 10p Playback equalizer 210k input. GND ...
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... V = 5.0V, refer to Electrical Characteristics Measurement Circuit) DD Measurement conditions and V pin currents CC DD R300k //C47µF R300k //C47µF R300k //C47µF R300k //C 47µF R9.1k , C0.015µF R100k //C0.1µ 2.7k L – 10 – CXA1998AQ Min. Typ. Max. Unit 6.5 8.0 V 10.0 4.5 5.0 V 5.5 13.5 19.7 mA 25.0 –13.0 –11.0 –9.0 dBm – ...
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... NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, at NORM – NS, – 11 – CXA1998AQ Min. Typ. Max. Unit –25.2 –26.7 dBm — — –10.0 1.5 – ...
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... NS 120µs – NORMAL SPEED 120µs – HS 120µs – HIGH SPEED 70µs – NS 70µs – NORMAL SPEED 70µs – HS 70µs – HIGH SPEED Measurement conditions = 2. 2.7k L – 12 – CXA1998AQ Min. Typ. Max. Unit 8.0 8.8 — dB — ...
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... V Measurement conditions = 2mA (max) OL output is open; applied OZ (DATA CLK) (CLK DATA) (LATCH DATA) (CLK LATCH) (LATCH CLK) /2. (Refer to “Equivalent circuit” of Pin Description.) DD – 13 – CXA1998AQ Min. Typ. Max. Unit 0.0 — 1.5 3.5 — 0.0 — 0.5 µA — — ...
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... Timing Chart for 11-bit Serial Data Interface (V CLK 3.5V DATA 1.5V t SLD LATCH 1.5V CLK DATA D10 LATCH XRESET = 5.0V) DD 3.5V 1. SDK HCD 3.5V t HLC t HCL D11 3.5V 1.5V 1. – 14 – CXA1998AQ ...
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... Vcc /25V µ 47 S15 RFC C15 10k R52 S11B 100 R41 S11A µ µ 0.018 0.018 C13 C14 600 R30 – 15 – CXA1998AQ 10k S28 100k R94 OUT AMS R93 µ 0.1 C32 TC AMS 100k R92 GND AMS 9.1k µ 0.015 GAIN AMS ...
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... PB INA2 42 PB INA1 43 PB INB1 44 PB FB11 45 PB FB21 46 PB OUT1 47 FP CAL 10k 4.7µ V GND CC GND – 16 – CXA1998AQ GND GND GND GND LATCH 24 GND V DD 100k ...
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... The standard resistor setting is 27k , but when resistance value is larger, high-band peak gain is larger, and when resistance value is smaller, high-band peak gain is smaller. B-EQ (Pin 70µs According to A-EQ control (DECK A) 120µs 70µs (DECK B) (DECK B) , Metal CrO (TYPE II) METAL (TYPE IV) 2 – 17 – CXA1998AQ M/H H ...
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... Pin 18 Pin 17 — Low mute OFF — AGC function stops Pin 16 Low, normal speed — DECK A selected Pin 15 Low mute OFF – 18 – CXA1998AQ D9 D10 D11 Input set at high Low High (OPEN) Low High (OPEN) Low High (OPEN) Low High (OPEN) ...
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... Examples of AGC control during timer recording (1) Resets when power is turned ON (AGC function operates). (2) AGC is turned OFF after AGC inputs (Pins 5 and 32) rise. (External capacitor charge of AGC TC is discharged.) (3) AGC is turned ON and timer recording begins. 1µs or more A 1µs or more – 19 – CXA1998AQ /2. DD 5.0V ...
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... 74HC165 ( – 20 – CXA1998AQ C21 GND 100µ/25V 74HC00 74HC08 ( ...
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... CXA1998AQ ...
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... No signal detection High Inside IC SA HPF LPF DET 25kHz AMS GAIN AMS OUT 100k 9 11 AMS GND CC CC Fig. 1. AMS Block Diagram f C 1kHz f (Hz) Fig. 2. Frequency Response – 22 – CXA1998AQ = 8V: CC AMS GND GND 25kHz 100kHz ...
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... To set AMS level at –25dB, determine and set the constant for Pin 9 external resistor. (Calculate assuming PBOUT1 = PBOUT2) First, get the required HPF gain from formula (2). –7.5dBm = –21dBm + (–25dB) + HPFgain, so HPF gain = 38.5dB. Next, get Pin 9 external resistance from formula (1). 38.5dB = 20log (1 + 100k / R1 1.2k , and external resistance is 1.2k . (1) – 23 – CXA1998AQ (2) ...
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... I is the sum of the V and V currents 5. – Supply voltage [V] CC 120µs – NS 120µs – HS 70µs – NS 70µs – HS 500 10k 20k 50k Frequency [Hz] – 24 – CXA1998AQ 10µF 0.018µ M ...
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... Frequency [Hz] Recording equalizer frequency response 0dB = NORM – NS, 315Hz, –30dBm 24 (TAPE) (SPEED) 22 NORM – NS CrO – METAL– 100 200 500 1k 2k Frequency [Hz] – 25 – CXA1998AQ 5k 10k 20k 50k 5k 10k 20k 50k ...
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... Frequency [Hz] AGC output characteristics 1kHz 300k 47µ –5 –10 –15 –35 – 0.015µ 9. 0.1µ 10k 20k 50k = 8V AGC OFF AGC ON –25 –20 –15 –10 –5 Input level [dBm] – 26 – CXA1998AQ ...
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... Recording equalizer total harmonic distortion NORM – 2.7k L 2.0 1kHz 0dB = –10dBm 1.0 0.5 0.2 0.1 –15 –10 – Output level [dBm] Playback equalizer total harmonic distortion 120µs – 2.7k L 2.0 1kHz 1.0 0.5 0.2 0.1 –30 –25 –20 –15 –10 –5 Output level [dBm] – 27 – CXA1998AQ ...
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... NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 48PIN QFP (PLASTIC 0.15 0.3 – 0.1 M ± 0.12 + 0.35 2.2 – 0.15 PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT – 28 – CXA1998AQ + 0.1 0.15 – 0.05 0.15 + 0.2 0.1 – 0.1 EPOXY RESIN SOLDER / PALLADIUM PLATING COPPER / 42 ALLOY 0.7g ...