AN8847SB datasheet(6/7 Pages) PANASONIC

Part #	AN8847SB

Description	Head amplifier IC for CD-ROM drive for 32 times speed or more

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Manufacturer	PANASONIC [Panasonic Semiconductor]

Direct Link	http://www.panasonic.com/industrial/

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6 / 7 page

AN8847SB

ICs for Compact Disc/CD-ROM Player

6

s Electrical Characteristics at Ta = 25°C (continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

NRF detection

NRF det. detection level

VRDA1

f

= 500 kHz, V

GC = VREF2 − 0.75 V

73

105

137

mV[p-p]

NRF det. high-level output

VRDAH f = 500 kHz, VGC = VREF2 − 0.75 V

4.2



V

voltage

NRF det. low-level output

VRDAL

f

= 500 kHz, V

GC = VREF2 − 0.75 V



0.8

V

voltage

BDO

CBDO detection current

IBDO

VCC1 = 5 V, VCC2 = 3.3 V

1.07

1.49

1.91

µA

VEQCTL = VREF2 − 0.5 V

CBDO detection current ratio

BIBD4

VCC1 = 5 V, VCC2 = 3.3 V

4.4

5.4

6.4



VEQCTL = VREF2

BDO high-level output voltage

VBDOH VCC1 = 5 V, VCC2 = 3.3 V

4.2



V

f

= 5 kHz, rectangular wave

BDO low-level output voltage

VBDOL

VCC1 = 5 V, VCC2 = 3.3 V



0.8

V

f

= 5 kHz, sine wave

OFTR

COFTR detection current

IOFTR

VCC1 = 5 V, VCC2 = 3.3 V

1.07

1.49

1.91

µA

VLDON = VREF2 − 0.5 V

COFTR detection current ratio

BIOFTR4 VCC1 = 5 V, VCC2 = 3.3 V

3.1

3.9

4.7



VLDON = VREF2

OFTR high-level output voltage VOFTRH VCC1 = 5 V, VCC2 = 3.3 V

4.2



V

f

= 5 kHz, rectangular wave

OFTR low-level output voltage

VOFTRL VCC1 = 5 V, VCC2 = 3.3 V



0.8

V

f

= 5 kHz, rectangular wave

OFTR sensitivity

VOFT_S f = 470 kHz, sine wave

0



1.2

V

VLDON = VREF2 +0.75 V

3TENV

CEA to ENV

GCEA−ENV VCC1 = 5 V, VCC2 = 3.3 V

25.0

28.0

31.0

dB

transfer characteristics

CEA input impedance

ZCEA

VCC1 = 5 V, VCC2 = 3.3 V

6.5

8.5

10.5

k

Ω

ENV amp. output impedance

ZENV

VCC1 = 5 V, VCC2 = 3.3 V

6.0

8.0

10.0

k

Ω

ENV amp. offset voltage

VENVOF VCC1 = 5 V, VCC2 = 3.3 V

−120

0

120

mV

ENV amp. operation

VENV

VCC1 = 5 V, VCC2 = 3.3 V

210

420

630

mV[p-p]

f

= 800 kHz, AM modulation

LD APC

LD operating reference voltage

VLD

VCC1 = 5 V, VCC2 = 3.3 V

139

170

201

mV

LDON operating voltage

VLDON VCC1 = 5 V, VCC2 = 3.3 V



− 0.35

V

Standby

Current consumption at no load

ISTBY

VCC1 = 5 V, VCC2 = 3.3 V

3.61

5.16

6.71

mA

in a standby mode

VLDON = VREF2 − 0.75 V

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