View AN8849SB_974566.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ICs for Compact Disc/CD-ROM Player
AN8849SB
Head amplifier IC for CD-ROM drive (for 24 times speed or more)
I Overview
The AN8849SB is a head amplifier IC for digital servo. It can configure an efficient CD-ROM system in combination with the MN662752, and allows a full-automatic adjustment of tracking balance-gain-offset and focus balance-gain-offset with fewer external parts. Built-in functions are a variable equalizer, wide band RF amp. and AGC which meet CAV playback with 24 times speed or more.
15.20.30 36 19 0.2 +0.10 -0.05
Unit: mm
11.930.30
8.40.30
1
18
1.300.25
2.850.2
1.300.25
I Features
* Variable equalizer which meets CAV playback with 24 times speed or more CAV playback. * Wide band RF amp. and AGC (fC = 20 MHz or more (-3 dB)) * Balance adjustment function built-in Focus error amp./tracking error amp. * CD-RW playback compatible. Variable gain Focus error amp./tracking error amp. (to +16.9 dB) * OFTR/BDO detection * APC amp.
0.30.11 0.8 Seating plane
0.10.1
SSOP036-P-0450A Note) The package of this product will be changed to lead-free type (SSOP036-P-0450C). See the new package dimensions section later of this datasheet.
I Applications
* CD/CD-ROM drive
0.5
Publication date: November 2001
SDD00016BEB
1
2
AN8849SB
I Block Diagram
3TOUT
CAGC
NRFDET
RFOUT EQSW CEA ARF RFC 5
EQ RF AGC RFDET AC BDO ENV detection OFTR
ADD amp. GCA BCA
RFN 3
ADD amp.
6
8
9
10
17
11
12
13 CBDO 14 BDO
36 35 34 33 32
Amp.
GCA BCA ADD amp. GCA BCA
SDD00016BEB
Amp.
15 COFTR 16 OFTR 26 FEN 27 FEOUT 22 VREF2 20
VREF1 2
31
Amp.
GCA BCA
Amp. Comp.
LD 1 PD
4 VCC1 VCC2
7
18 GND
30 TBAL
25 TEOUT
24 TEN
23 CCRS
21 CROSS
29 FBAL
28 GCTRL
19 LDON
AN8849SB
I Pin Descriptions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Description APC amp. input pin APC amp. output pin RF addition amp. inverted input pin Power supply pin 1 RF addition amp. output pin EQ characteristics control pin Power supply pin 2 Capacitor connection pin for HPF of AGC input AGC loop filter connection pin AGC output pin Capacitor connection pin for HPF amp. 3TENV output pin Capacitor connection pin for RF dark-side envelope detection 14 15 BDO output pin Capacitor connection pin for RF right-side envelope detection 16 17 OFTR output pin NRFDET output pin Pin No. 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 GND pin APC & masking control pin VREF1 output pin CROSS output pin VREF2 output pin Capacitor connection pin for CROSS TE amp. inverted input pin TE amp. output pin FE amp. inverted input pin FE amp. output pin GCTRL pin FBAL control pin TBAL control pin Tracking signal input pin 1 Tracking signal input pin 2 Focus signal input pin 4 Focus signal input pin 2 Focus signal input pin 3 Focus signal input pin 1 Description
I Absolute Maximum Ratings
Parameter Supply voltage 1 Supply voltage 2 Supply current 1 Supply current 2
*1 *1 *1 *1 *1, *2 *1
Symbol VCC1 VCC2 ICC1 ICC2 PD Topr Tstg
Rating 5.8 5.8 55 2.5 333.5 -20 to +75 -55 to +125
Unit V V mA mA mW C C
Power dissipation
Operating ambient temperature Storage temperature
*1
Note) *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25C. *2: PD = VCC1 * ICC1 + VCC2 * ICC2
I Recommended Operating Range
Parameter Supply voltage 1 Supply voltage 2
Note) Apply voltage to satisfy VCC2 - VCC1 < 0.3 V.
Symbol VCC1 VCC2
Range 4.5 to 5.5 3.0 to 5.5
Unit V V
SDD00016BEB
3
AN8849SB
I Electrical Characteristics at Ta = 25C
Parameter Current consumption with no load 1 Current consumption with no load 2 VREF1 output voltage VREF2 output voltage Focus error amp. Focus error amp. output offset voltage Focus error offset balance crosstalk amount Focus error amp. V-V conversion gain Focus error amp. V-V conversion relative gain Focus error amp. balance output 1-H Focus error amp. balance output 1-L Focus error amp. balance relative output 2-H Focus error amp. balance relative output 2-L Focus error amp. frequency characteristics Focus error amp. GCTRL gain ratio x 4 Tracking error amp. Tracking error amp. output offset voltage Tracking error offset balance crosstalk amount Tracking error amp. V-V conversion gain Tracking error amp. V-V conversion relative gain Tracking error amp. balance output 1-H Tracking error amp. balance output 1-L VTR-OF VCC1 = 5 V, VCC2 = 3.3 V VTR-OFB VCC1 = 5 V, VCC2 = 3.3 V VTB = VREF2 0.5 V GTR GTR VCC1 = 5 V, VCC2 = 3.3 V VGC = VREF2 - 0.75 V VCC1 = 5 V, VCC2 = 3.3 V VGC = VREF2 - 0.75 V -60 -200 12.2 -1.5 0.45 1.08 0 0 14.3 0 0.65 1.35 60 200 16.4 1.5 0.85 1.62 mV mV dB dB VFO-OF VCC1 = 5 V, VCC2 = 3.3 V VFO-OFB VCC1 = 5 V, VCC2 = 3.3 V VFB = VREF2 0.5 V GFO GFO VCC1 = 5 V, VCC2 = 3.3 V VGC = VREF2 - 0.75 V VCC1 = 5 V, VCC2 = 3.3 V VGC = VREF2 - 0.75 V -90 -150 12.3 -1.5 1.08 0.45 4.35 0 0 14.4 0 1.35 0.65 6.35 90 150 16.5 1.5 1.62 0.85 8.35 mV mV dB dB dB dB dB Symbol Conditions Min 28.4 1.20 2.27 1.50 Typ 40.6 1.72 2.50 1.65 Max 52.8 2.24 2.73 1.80 Unit mA mA V V ITOTAL1 VCC1 = 5 V, VCC2 = 3.3 V VEQSW = VREF2 +0.75 V ITOTAL2 VCC1 = 5 V, VCC2 = 3.3 V VREF1 VREF2 VCC1 = 5 V, VCC2 = 3.3 V VCC1 = 5 V, VCC2 = 3.3 V
BFO1-H VCC1 = 5 V, VCC2 = 3.3 V VFB = VREF2 +0.5 V BFO1-L VCC1 = 5 V, VCC2 = 3.3 V VFB = VREF2 - 0.5 V BFOH BFOL GFOF BFO4 VCC1 = 5 V, VCC2 = 3.3 V VFB = VREF2 +0.5 V VCC1 = 5 V, VCC2 = 3.3 V VFB = VREF2 - 0.5 V VCC1 = 5 V, VCC2 = 3.3 V f = 3 kHz, 60 kHz VCC1 = 5 V, VCC2 = 3.3 V VGC = VREF2
-8.35 -6.35 -4.35 -4.5 3.3 -3.0 4.3 -1.5 5.3
BTR1-H VCC1 = 5 V, VCC2 = 3.3 V VTB = VREF2 +0.5 V BTR1-L VCC1 = 5 V, VCC2 = 3.3 V VTB = VREF2 - 0.5 V
4
SDD00016BEB
AN8849SB
I Electrical Characteristics at Ta = 25C (continude)
Parameter Symbol Conditions VCC1 = 5 V, VCC2 = 3.3 V VTB = VREF2 +0.5 V VCC1 = 5 V, VCC2 = 3.3 V VTB = VREF2 - 0.5 V VCC1 = 5 V, VCC2 = 3.3 V f = 30 kHz, 500 kHz VCC1 = 5 V, VCC2 = 3.3 V VGC = VREF2 VCC1 = 5 V, VCC2 = 3.3 V, f = 10 kHz VCC1 = 5 V, VCC2 = 3.3 V, f = 10 kHz VCC1 = 5 V, VCC2 = 3.3 V VCC1 = 5 V, VCC2 = 3.3 V Min Typ Max Unit Tracking error amp. (continued) Tracking error amp. balance relative output 2-H Tracking error amp. balance relative output 2-L Tracking error amp. frequency characteristics Tracking error amp. GCTRL gain ratio x 4 CROSS detection CROSS high-level output CROSS low-level output RF addition amp. RF addition amp. output offset voltage RF addition amp. addition gain RF addition amp. addition relative gain 1 RF addition amp. addition relative gain 2 RF addition amp. addition relative gain 3 RF addition amp. full-addition gain RF addition amp. full-addition frequency characteristics * Variable EQ characteristics EQ characteristics x 1-1 * EQ characteristics x 1-3 * EQ characteristics x 20-1 * EQ characteristics x 20-3 * AGC AGC max. gain AGC operating gain AGC compression factor AGC frequency characteristics GMAGC f = 500 kHz, VIN = 20 mV[p-p] GAGC f = 500 kHz, VIN = 500 mV[p-p] f = 30 MHz, VIN = 20 mV[p-p] GAGC f = 500 kHz, VIN = 125 mV[p-p] GFAGC 20.3 3.0 -1.20 -4.5 23.3 6.0 1.30 -3.0 26.3 9.0 3.80 0 dB dB dB dB GEQ1-1 f = 100 kHz EQSW = VREF2 - 0.5 V GEQ1-3 f = 500 kHz EQSW = VREF2 - 0.5 V GEQ20-1 EQSW = VREF2 +0.5 V f = 2 MHz GEQ20-3 EQSW = VREF2 +0.5 V f = 13 MHz -1.5 0.5 -1.5 -1.3 0 2.0 0 0.2 1.5 3.5 1.5 1.7 dB dB dB dB VRAOF GRAD -200 -2.1 -1.0 -1.0 -1.0 9.9 -3.1 0 0 0 0 0 12.0 -1.6 200 2.1 1.0 1.0 1.0 14.1 1.4 mV dB dB dB dB dB dB VCR-H VCR-L 4.2 0.8 V V BTRH BTRL GTRF BTR4 -8.35 -6.35 -4.35 4.35 -4.5 3.3 6.35 4.3 8.35 0 5.3 dB dB dB
GRAD1 VCC1 = 5 V, VCC2 = 3.3 V GRAD2 VCC1 = 5 V, VCC2 = 3.3 V GRAD3 VCC1 = 5 V, VCC2 = 3.3 V GRADA VCC1 = 5 V, VCC2 = 3.3 V
GRADDF VCC1 = 5 V, VCC2 = 3.3 V f = 500 kHz, 30 MHz
Note) *: The values mentioned above are subject to change according to the state of a printed circuit board, a socket, etc.
SDD00016BEB
5
AN8849SB
I Electrical Characteristics at Ta = 25C (continued)
Parameter NRF detection NRF det. detection level NRF det. high-level output voltage NRF det. low-level output voltage NRF det. detection level ratio BDO CBDO detection current CBDO detection current ratio BDO high-level output voltage BDO low-level output voltage OFTR COFTR detection current COFTR detection current ratio IOFTR VCC1 = 5 V, VCC2 = 3.3 V EQSW = VREF2 - 0.5 V 0.98 3.0 4.2 0.65 1.40 3.8 23.0 8.8 8.4 0 540 1.82 4.6 0.8 0.35 26.0 10.8 10.4 100 A V V V V IBDO BIBD4 VBDOH VBDOL VCC1 = 5 V, VCC2 = 3.3 V EQSW = VREF2 - 0.5 V VCC1 = 5 V, VCC2 = 3.3 V EQSW = VREF2 VCC1 = 5 V, VCC2 = 3.3 V f = 5 kHz, rectangular wave VCC1 = 5 V, VCC2 = 3.3 V f = 5 kHz, rectangular wave 0.98 3.0 4.2 1.40 3.8 1.82 4.6 0.8 A V V VRDA1 VRDAH VRDAL BRDA f = 500 kHz, VGC = VREF2 - 0.75 V f = 500 kHz, VGC = VREF2 - 0.75 V f = 500 kHz, VGC = VREF2 - 0.75 V f = 500 kHz, VGC = VREF2 73 4.2 2.9 105 3.9 137 mV[p-p] 0.8 4.9 V V Symbol Conditions Min Typ Max Unit
BIOFTR4 VCC1 = 5 V, VCC2 = 3.3 V EQSW = VREF2
OFTR high-level output voltage VOFTRH VCC1 = 5 V, VCC2 = 3.3 V f = 5 kHz, rectangular wave OFTR low-level output voltage Masking operating voltage 1 Masking operating voltage 2 3TENV CEA to ENV transfer characteristics CEA input impedance ENV amp. output impedance ENV amp. offset voltage ENV amp. operation LD APC LD operating reference voltage LDON operating voltage VLD VLDON VCC1 = 5 V, VCC2 = 3.3 V VCC1 = 5 V, VCC2 = 3.3 V GCEA-ENV VCC1 = 5 V, VCC2 = 3.3 V ZCEA ZENV VENV VCC1 = 5 V, VCC2 = 3.3 V VCC1 = 5 V, VCC2 = 3.3 V VCC1 = 5 V, VCC2 = 3.3 V f = 800 kHz, AM modulation VOFTRL VCC1 = 5 V, VCC2 = 3.3 V f = 5 kHz, rectangular wave VMASK1 f = 40 kHz, VIN = 100 mV[p-p] VMASK2 f = 40 kHz, VIN = 100 mV[p-p]
20.0 6.8 6.4 -100 270
dB k k mV
VENVOF VCC1 = 5 V, VCC2 = 3.3 V
810 mV[p-p]
135
170
205 - 0.35
mV V
6
SDD00016BEB
AN8849SB
I Application Circuit Example
15 COFTR 16 OFTR 26 FEN
27 FEOUT
13 CBDO 14 BDO
22 VREF2
20 VREF1
2 LD
BDO
VREF2 12 3TOUT
OFTR
Amp.
1 PD
19 LDON VREF2 28 GCTRL
CEA 11
ENV detection
29 FBAL VREF2 21 CROSS
Comp.
NRFDET 17 ARF 10
RF AGC Amp.
23 CCRS 24 TEN 25 TEOUT 30 TBAL VREF2
CAGC 9 VREF1 RFC 8 VREF2
EQ
RFDET AC
BCA
BCA
BCA
GCA
6
GCA
EQSW
BCA
7
GCA
VREF2
RFOUT 5
ADD amp.
ADD amp. ADD amp.
GCA
VREF1 3 RFN
4 18
VCC1 GND
Amp.
A 36
C 35
B 34
D 33
F 32
VREF1
A+C
B+D
VREF1
E
F
E 31
Amp.
SDD00016BEB
7
AN8849SB
I New Package Dimensions (Unit: mm)
* SSOP036-P-0450C (Lead-free package) 15.200.20 36 19 (1.765)
8.400.30 11.390.30
0.20-0.05
+0.10
0 to 10 (0.50) 1 (0.80) 0.80 18 0.30+0.10 -0.05
Seating plane
0.100.10
2.850.20
Seating plane
8
SDD00016BEB
Request for your special attention and precautions in using the technical information and semiconductors described in this material
(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. (2) The technical information described in this material is limited to showing representative characteristics and applied circuit examples of the products. It does not constitute the warranting of industrial property, the granting of relative rights, or the granting of any license. (3) The products described in this material are intended to be used for standard applications or general electronic equipment (such as office equipment, communications equipment, measuring instruments and household appliances). Consult our sales staff in advance for information on the following applications: * Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body. * Any applications other than the standard applications intended. (4) The products and product specifications described in this material are subject to change without notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to make sure that the latest specifications satisfy your requirements. (5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment. Even when the products are used within the guaranteed values, redundant design is recommended, so that such equipment may not violate relevant laws or regulations because of the function of our products. (6) When using products for which dry packing is required, observe the conditions (including shelf life and after-unpacking standby time) agreed upon when specification sheets are individually exchanged. (7) No part of this material may be reprinted or reproduced by any means without written permission from our company.
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic semiconductor products best suited to their applications. Due to modification or other reasons, any information contained in this material, such as available product types, technical data, and so on, is subject to change without notice. Customers are advised to contact our semiconductor sales office and obtain the latest information before starting precise technical research and/or purchasing activities. B. Panasonic is endeavoring to continually improve the quality and reliability of these materials but there is always the possibility that further rectifications will be required in the future. Therefore, Panasonic will not assume any liability for any damages arising from any errors etc. that may appear in this material. C. These materials are solely intended for a customer's individual use. Therefore, without the prior written approval of Panasonic, any other use such as reproducing, selling, or distributing this material to a third party, via the Internet or in any other way, is prohibited.
2001 MAR

▲Up To Search▲

Price & Availability of AN8849SB

	To Download AN8849SB Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .