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DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
PC3205GR
IQ DEMODULATOR FOR DIGITAL VIDEO/DATA RECEIVER
DESCRIPTION
The PC3205GR is Silicon monolithic IC designed for use as IQ demodulator in digital communication systems. This IC consists of AGC amplifier, dual balanced mixers (DBM), oscillator, quadrature phase shifter and I & Q output buffer amplifiers. The package is 20-pin SSOP (shrink small outline package) suitable for high-density surface mount.
FEATURES
* On chip quadrature (90) phase shifter * IQ phase and amplitude balance * Low distortion * Supply Voltage Amplitude Balance : Phase Balance IM3 VCC : : : 0.5 dB 2.0 degree 56 dBc (@0.708 VP-P/tone) 5V
* Packaged in 20-pin SSOP suitable for high-density surface mount
ORDERING INFORMATION
Part Number Package 20-pin plastic SSOP (225 mil) Supplying Form Embossed tape 12 mm wide. Pin 1 indicates pull-out direction of tape. Q'ty 2.5 k/reel
PC3205GR-E1
For evaluation sample order, please contact your local NEC office. (Part number for sample order: PC3205GR)
Caution electro-static sensitive device
The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability and additional information.
Document No. P13541EJ3V0DS00 (3rd edition) Date Published October 1999 N CP(K) Printed in Japan
The mark
shows major revised points.
(c)
1998, 1999
PC3205GR
INTERNAL BLOCK DIAGRAM AND PIN CONFIGURATION (Top View)
VCC (I) 1 GND (I) VAGC GND (IF) 2 3 4 0 90 deg phase shifter OSC 90 14 OSC-C2 13 GND (PS) 12 GND (PS) LPF VCC (Q) 10 11 Q OUT MIXER LPF 19 GND (PS) 18 VCC (PS) 17 OSC-C1 16 OSC-B2 15 OSC-B1 20 I OUT
IF IN 5 IF IN 6 GND (IF) AGC IF 7 Amplifier Amplifier
VCC (IF) 8 GND (Q) 9
2
Data Sheet P13541EJ3V0DS00
PC3205GR
PIN FUNCTIONS
Pin No. 1 Pin Name VCC(I) Pin Voltage TYP. (V) 5.0
Function and Explanation Supply voltage pin.
Equivalent Circuit
2
GND(I)
0.0
Ground pin.
3
VAGC
0 to 5
Gain control pin. VAGC = 0 V: Full gain VAGC = 5 V: Full reduction
3
4 5
GND(IF) IF IN
0.0 2.7
Ground pin. IF input pins. In case of single input, 5 pin or 6 pin should be grounded through capacitor.
6
IF IN
2.7
5
6
7
GND(IF)
0.0
Ground pin.
8
VCC(IF)
5.0
Supply voltage pin.
9
GND (Q)
0.0
Ground pin.
10
VCC (Q)
5.0
Supply voltage pin.
Data Sheet P13541EJ3V0DS00
3
PC3205GR
Pin No. 11
Pin Name Q OUT
Pin Voltage TYP. (V) 2.6
Function and Explanation Q-signal output pin.
Equivalent Circuit
11 REG
12
GND(PS)
0.0
Ground pin.
13
GND(PS)
0.0
Ground pin.
14
OSC-C2
3.4
Connected capacitor between 14 pin and 15 pin to oscillate with active feedback loop.
15
OSC-B1
3.0
Connected SAW resonator through capacitor.
14 16
17 15
16
OSC-B2
3.0
Connected SAW resonator through capacitor.
17
OSC-C1
3.4
Connected capacitor between 16 pin and 17 pin to oscillate with active feedback loop.
18
VCC(PS)
5.0
Supply voltage pin.
19
GND(PS)
0.0
Ground pin.
20
I OUT
2.6
I-signal output pin.
20 REG
4
Data Sheet P13541EJ3V0DS00
PC3205GR
ABSOLUTE MAXIMUM RATINGS (TA = +25C unless otherwise specified)
Parameter Supply Voltage Power Dissipation Operating Ambient Temperature Storage Temperature Symbol VCC PD TA Tstg TA = +85C
Note
Test Condition
Rating 6.0 433 -40 to +85 -55 to +150
Unit V mW C C
Note Mounted on 50 mm x 50 mm x 1.6 mm double epoxy glass board. RECOMMENDED OPERATING RANGE
Parameter Supply Voltage Operating Ambient Temperature IF Input Level Range Gain Control Voltage Range Symbol VCC TA PIF VAGC Vout = 1 VP-P Test Condition MIN. 4.5 -25 -45 0.0 TYP. 5.0 +25 - - MAX. 5.5 +85 -25 VCC Unit V C dBm V
ELECTRICAL CHARACTERISTICS (TA = +25C, VCC = 5 V, Zin = 50 , Zout = 1 k)
Parameter Circuit Current IF Input Frequency IQ Output Frequency Symbol ICC fIF fIQ No input signal fIF > fOSC Gcv (@fIQ = 10 MHz) 1 dB, Vout = 1 VP-P PIF = -45 to -25 dBm fIF = 490 MHz, fOSC = 479.5 MHz VAGC = 0 to 0.5 V fIF = 490 MHz, fOSC = 479.5 MHz, VAGC = 2 V fIF = 490 MHz, fOSC = 479.5 MHz VAGC = 4.5 V to VCC fIF = 490 MHz, fOSC = 479.5 MHz VAGC = 0.5 to 4.5 V fIF = 490 MHz, fOSC = 479.5 MHz, Vout = 1 VP-P PIF = -45 to -25 dBm fIF = 490 MHz, fOSC = 479.5 MHz, Vout = 1 VP-P PIF = -45 to -25 dBm fIQ = 0.3 to 30 MHz, PIF = -45 to -25 dBm VAGC = 0 to 0.5 V, PIF = -45 to -25 dBm Note Test Conditions MIN. 48 440 0.3 Note 49 Note Note - - Note 39 Note -2 Note -0.5 Note Note Note - 1.8 1.0 - - - VP-P VP-P 0 +0.5 dB 0 +2 deg - - dB 44 - - 10 dB dB 53 - dB TYP. 65 - - MAX. 78 520 30 Unit mA MHz MHz
Conversion Gain 1
Gcv1
Conversion Gain 2 Conversion Gain 3
Gcv2 Gcv3
AGC Gain Control Range
GCR V
IQ Phase Balance
IQ Amplitude Balance
Output Voltage Maximum Output Voltage
Vout Voclip
Note By measurement circuit 1
Data Sheet P13541EJ3V0DS00
5
PC3205GR
STANDARD CHARACTERISTICS (TA = +25 C, VCC = 5 V, Zin = 50 , Zout = 1 k)
Parameter Noise Figure (DSB) Third Order Intermodulation Distortion LO to IF Isolation LO to IQ Isolation Symbol NF IM3 Test Conditions fOSC = 479.5 MHz, fIQ = 10 MHz, VAGC = 0.5 V Note 1 Reference Value 12.5 56 Unit dB dBc
fIF1 = 489 MHz, fIF2 = 490 MHz, fOSC = 479.5 MHz Vout = 0.708 VP-P/tone Note 2 f = 480 MHz, 15 pin or 16 pin to 5 pin f = 480 MHz 15 pin or 16 pin to 11 pin or 20 pin f = 10 MHz, 11 pin to 20 pin fIF = 480 MHz fIF = 480 MHz fIQ = 0.3 to 30 MHz Note 2
Iso(LO-IF) Iso(LO-IQ)
50 30
dB dB
Note 2 Note 2 30 138-j45 6 25 dB dB
I to Q Isolation IF Input Impedance IF Input Return Loss IQ Output Impedance
Iso(I-Q) Zin(IF) RL(IF) ZO(IQ)
Notes 1. By measurement circuit 2 2. By measurement circuit 1
6
Data Sheet P13541EJ3V0DS00
PC3205GR
TYPICAL CHARACTERISTICS (TA = +25C)
CIRCUIT CURRENT vs. SUPPLY VOLTAGE 80 70 no input signal 60 50 CONVERSION GAIN vs. AGC VOLTAGE VCC = 4.5 V VCC = 5.0 V VCC = 5.5 V
Circuit Current ICC (mA)
60 50 40 30 20 10 0
Conversion Gain GCV (dB)
40 30 20 10 0 -10 fIF = 490 MHz PIF = -45 dBm fOSC = 479.5 MHz measurement circuit 1 0 1 2 3 4 5 6 AGC Voltage VAGC (V)
0
1
2
3
4
5
6
Supply Voltage VCC (V)
IQ Phase Balance (degree)
IQ Amplitude Balance V (dB)
IQ PHASE BALANCE vs. IQ OUTPUT FREQUENCY 93 VCC = 4.5 V VCC = 5.0 V VCC = 5.5 V 92
IQ AMPLITUDE BALANCE vs. IQ OUTPUT FREQUENCY 0.5 VCC = 4.5 V VCC = 5.0 V 0.4 VCC = 5.5 V 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0.1 fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 1 10 IQ Output Frequency fIQ (MHz) 100
91
90
89
88
87
fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 0.1 1 10 IQ Output Frequency fIQ (MHz) 100
IQ PHASE BALANCE vs. IF INPUT POWER 93 VCC = 4.5 V VCC = 5.0 V VCC = 5.5 V 0.5 0.4
IQ AMPLITUDE BALANCE vs. IF INPUT POWER VCC = 4.5 V VCC = 5.0 V VCC = 5.5 V
IQ Amplitude Balance V (dB)
IQ Phase Balance (degree)
92
0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -50 fIF = 490 MHz fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 -40 -30 -20 IF Input Power PIF (dBm) -10
91
90
89 fIF = 490 MHz fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 -40 -30 -20 IF Intput Power PIF (dBm) -10
88
87 -50
Data Sheet P13541EJ3V0DS00
7
PC3205GR
IQ OUTPUT POWER vs. IF INPUT POWER 0
IQ Output Power Pout (50 /1050) (dBm) IQ Output Power Pout (50 /1050) (dBm)
IQ OUTPUT POWER vs. IF INPUT POWER 0 1st 2nd 3rd
1st 2nd 3rd
-20
-20
-40
-40
-60
-80 -60
VCC = 5 V VAGC = 0.5 V fIF = 490 MHz fOSC = 479.5 MHz measurement circuit 1 -50 -40 -30 IF Input Power PIF (dBm) -20
-60
-80 -50
VCC = 5 V VAGC = 2 V fIF = 490 MHz fOSC = 479.5 MHz measurement circuit 1 -40 -30 IF Input Power PIF (dBm) -20
IQ OUTPUT POWER vs. IF INPUT POWER 0
IQ Output Power Pout (50 /1050) (dBm) IQ Output Power Pout (50 /1050) (dBm)
IQ OUTPUT POWER vs. IF INPUT POWER 0 VCC = 5 V VAGC = 3 V fIF = 490 MHz fOSC = 479.5 MHz measurement circuit 1 1st 2nd 3rd
1st 2nd 3rd
-20
-20
-40
-40
-60
-80 -40
VCC = 5 V VAGC = 2.5 V fIF = 490 MHz fOSC = 479.5 MHz measurement circuit 1 -30 -20 IF Input Power PIF (dBm) -10
-60
-80 -30
-20 -10 IF Input Power PIF (dBm)
0
IQ OUTPUT POWER vs. IF INPUT POWER 0
IQ Output Power Pout (50 /1050) (dBm) IQ Maximum Output Voltage Voclip (VP-P)
-20
VCC = 5 V VAGC = 3.5 V fIF = 490 MHz fOSC = 479.5 MHz measurement circuit 1
1st 2nd 3rd
IQ MAXIMUM OUTPUT VOLTAGE vs. AGC VOLTAGE 3 VCC = 4.5 V VCC = 5 V VCC = 5.5 V 2.5
2
-40
1.5
1
-60
0.5
-80 -30
fIF = 490 MHz fOSC = 479.5 MHz measurement circuit 1 0 1 2 3 AGC Voltage VAGC (V) 4 5
-20 -10 IF Input Power PIF (dBm)
0
0
8
Data Sheet P13541EJ3V0DS00
PC3205GR
STANDARD CHARACTERISTICS (TA = +25C)
THIRD ORDER INTERMODULATION DISTORTION 60
50
Third Order Intermodulation Distortion IM3 (dBc) (2tone 1Vp-p OUTPUT)
40
30 fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz Vout = 0.708 VP-P /tone (1 k) measurement circuit 1 VCC = 4.5 V VCC = 5.0 V VCC = 5.5 V -40 -30 -20 IF Input Power PIF/tone (dBm) -10
20
10
0 -50
2nd/3rd ORDER INTERMODULATION DISTORTION 0
IQ Output Power Pout (50 /1050) (dBm)
2nd/3rd ORDER INTERMODULATION DISTORTION 0
IQ Output Power Pout (50 /1050) (dBm)
-10 -20 -30 -40 -50 -60 -70 -80 -90 -60 VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz VAGC = 0.5 V measurement circuit 1 -50 -40 -30 IF Input Power PIF/tone (dBm) 2nd 1st
-10 -20 -30 -40 -50 -60 -70 -80 -90 -40 2nd VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz VAGC = 2.5 V measurement circuit 1 -30 -20 -10 IF Input Power PIF/tone (dBm) 3rd 1st
3rd
Data Sheet P13541EJ3V0DS00
9
PC3205GR
STANDARD CHARACTERISTICS IF INPUT IMPEDANCE
MARKER 1 480 MHz 138.35 -45.359
1
START
10.000 000 MHz
STOP
1000.000 000 MHz
IQ OUTPUT IMPEDANCE
MARKER 1 10 MHz 25.26 1.845
1
START
.300 000 MHz
STOP
100.000 000 MHz
10
Data Sheet P13541EJ3V0DS00
PC3205GR
THERMAL CHARACTERISTICS (FOR REFERENCE)
CIRCUIT CURRENT vs. SUPPLY VOLTAGE 80 70
Circuit Current ICC (mA)
CONVERSION GAIN vs. AGC VOLTAGE 60 50
Conversion Gain GCV (dB)
no input signal
TA = -25 C TA = +25 C TA = +85 C
60 50 40 30 20 10 0 TA = -25 C TA = +25 C TA = +85 C 4 5 6
40 30 20 10 0 -10 VCC = 5 V fIF = 490 MHz PIF = -45 dBm fOSC = 479.5 MHz measurement circuit 1 0 1 2 3 4 5 6 AGC Voltage VAGC (V)
0
1
2
3
Supply Voltage VCC (V)
IQ PHASE BALANCE vs. IQ OUTPUT FREQUENCY 92 TA = -25 C TA = +25 C TA = +85 C
IQ Phase Balance (degree)
IQ AMPLITUDE BALANCE vs. IQ OUTPUT FREQUENCY 0.5 TA = -25 C TA = +25 C 0.4 TA = +85 C
IQ Amplitude Balance (dB)
0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0.1 VCC = 5 V fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 1 10 IQ Output Frequency fIQ (MHz) 100
91
90
89 VCC = 5 V fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 88 0.1 1 10 IQ Output Frequency fIQ (MHz) 100
IQ PHASE BALANCE vs. IF INPUT POWER 93 TA = -25 C TA = +25 C TA = +85 C
IQ Amplitude Balance (dB)
IQ AMPLITUDE BALANCE vs. IF INPUT POWER 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -50 VCC = 5 V fIF = 490 MHz fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 -40 -30 -20 IF Input Power PIF (dBm) -10 TA = -25 C TA = +25 C TA = +85 C
IQ Phase Balance (degree)
92
91
90
89 VCC = 5 V fIF = 490 MHz fOSC = 479.5 MHz Vout = 1 VP-P (1 k) measurement circuit 1 -40 -30 -20 IF Intput Power PIF (dBm) -10
88
87 -50
Data Sheet P13541EJ3V0DS00
11
PC3205GR
Third Order Intermodulation Distortion IM3 (dBc) (2tone 1VP-POUTPUT)
IQ OUTPUT POWER vs. IQ OUTPUT FREQUENCY -20
IQ Output Power Pout (50 /1050) (dBm)
3rd ORDER INTERMODULATION DISTORTION 60
-22
50
40
-24
30
-26
-28
-30
VCC = 5 V fOSC = 479.5 MHz VAGC = 0.5 V PIF = -50 dBm Vout = 1 VP-P (1 k) measurement circuit 1 TA = -25 C TA = +25 C TA = +85 C 0.1 1 10 IQ Output Frequency fIQ (MHz) 100
20
10
0 -50
VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz Vout = 0.708 VP-P /tone (1 k) measurement circuit 1 TA = -25 C TA = +25 C TA = +85 C -40 -30 -20 IF Input Power PIF/tone (dBm) -10
2nd/3rd ORDER INTERMODULATION DISTORTION 0
IQ Output Power Pout (50 /1050 ) (dBm)
2nd/3rd ORDER INTERMODULATION DISTORTION 0
IQ Output Power Pout (50 /1050 ) (dBm)
-10 -20 -30 -40 -50 -60 -70 -80 -90 -60 2nd TA = -25 C VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz VAGC = 0.5 V measurement circuit 1 -50 -40 IF Input Power PIF/tone (dBm) -30 1st
-10 -20 -30 -40 -50 -60 -70 -80 -90 -60 2nd TA = +85 C VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz VAGC = 0.5 V measurement circuit 1 -50 -40 IF Input Power PIF/tone (dBm) -30 1st
3rd
3rd
2nd/3rd ORDER INTERMODULATION DISTORTION 0
IQ Output Power Pout (50 /1050 ) (dBm)
2nd/3rd ORDER INTERMODULATION DISTORTION 0
IQ Output Power Pout (50 /1050 ) (dBm)
-10 -20 -30 -40 -50 -60 -70 -80 -90 -40 3rd 2nd TA = -25 C VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz VAGC = 2.5 V measurement circuit 1 -30 -20 IF Input Power PIF/tone (dBm) -10 1st
-10 -20 -30 -40 -50 -60 -70 -80 -90 -40 3rd 2nd TA = +85 C VCC = 5 V fIF1 = 489 MHz fIF2 = 490 MHz fOSC = 479.5 MHz VAGC = 2.5 V measurement circuit 1 -30 -20 IF Input Power PIF/tone (dBm) -10 1st
12
Data Sheet P13541EJ3V0DS00
PC3205GR
MEASUREMENT CIRCUIT 1
1 F VCC
1 2
MIXER LPF
20 1 F 19 18 0 17 16 15 OSC 100 pF 14 13 12 LPF 11 SAW Resonator 1 pF (MURATA: SAR479.45MB10x200) *2 1 F 1 k I OUT
1 000 pF VAGC IF 1 IF IN
3 4 5
1 pF 100 pF
50
1 000 pF 6 1 000 pF AGC IF 7 Amplifier Amplifier 8 9 10 1 F
90 deg phase shifter 90
50
IF 2 *1 1 F
1 F
1 k
Q OUT
*1 *2
In the case of measurement of IM3. * Vector Signal Analyzer or Vector Voltage Meter @measurement of IQ phase balance and IQ amplitude balance. * Spectrum Analyzer @measurement of bandwidth and IM3.
MEASUREMENT CIRCUIT 2
NF Meter
1 F VCC
1 2
MIXER LPF
20 1 F 1 k 19 1 F 18 0 17 16 15 OSC 100 pF 14 13 12 LPF 11 1 pF 100 pF
LPF I OUT
1 000 pF VAGC
3 4
IF IN Noise Source 1 000 pF 6 1 000 pF AGC IF 7 Amplifier Amplifier 8 9 10 1 F 5
90 deg phase shifter 90
SAW Resonator 1 pF (MURATA: SAR479.45MB10x200) Q OUT LPF 1 F 1 k
1 F
Data Sheet P13541EJ3V0DS00
13
PC3205GR
APPLICATION CIRCUIT EXAMPLE (In the case of LO single input)
1 F VCC
MIXER 1 LPF 2 19 18 0 90 deg phase shifter IF AGC Amplifier Amplifier OSC 90 17 1 000 pF 16 15 1 000 pF 14 13 12 LPF 10 11 1 F 1 k 56 20 1 F 1 k
I OUT
1 000 pF VAGC 3 4 IF IN 1 000 pF 6 1 000 pF 7 8 9 5 1 F
LO IN
1 F
Q OUT
1 F The application circuits and their parameters are for reference only and are not intended for use in actual design-ins.
14
Data Sheet P13541EJ3V0DS00
PC3205GR
PACKAGE DIMENSIONS
20 PIN PLASTIC SSOP (225 mil) (UNIT: mm)
20 11
detail of lead end
3-3
+7
1 6.7 0.3
10
1.8 MAX. 1.5 0.1
6.4 0.2 4.4 0.1 1.0 0.2
0.5 0.2 0.65 0.22 -0.05 0.1 0.1
+0.10
0.15 0.10 M
0.15 0.575 MAX.
+0.10 -0.05
NOTE
Each lead centerline is located within 0.10 mm of its true position (T.P.) at maximum material condition.
Data Sheet P13541EJ3V0DS00
15
PC3205GR
NOTE ON CORRECT USE
(1) Observe precautions for handling because of electro-static sensitive devices. (2) Form a ground pattern as widely as possible to minimize ground impedance (to prevent undesires oscillation). (3) Keep the track length of the ground pins as short as possible. (4) A low pass filter must be attached to Vcc line.
RECOMMENDED SOLDERING CONDITIONS
This product should be soldered under the following recommended conditions. For soldering methods and conditions other than those recommended below, contact your NEC sales representative.
Recommended Condition Symbol IR35-00-3
Soldering Method Infrared Reflow
Soldering Conditions Package peak temperature: 235 C or below Time: 30 seconds or less (at 210 C) Note Count: 3, Exposure limit : None Package peak temperature: 215 C or below Time: 40 seconds or less (at 200 C) Note Count: 3, Exposure limit : None Soldering bath temperature: 260 C or below Time: 10 seconds or less Note Count: 1, Exposure limit : None Pin temperature: 300 C Time: 3 seconds or less (per side of device) Note Exposure limit : None
VPS
VP15-00-3
Wave soldering
WS60-00-1
Partial Heating
-
Note After opening the dry pack, keep it in a place below 25 C and 65% RH for the allowable storage period. Caution Do not use different soldering methods together (except for partial heating). For details of recommended soldering conditions for surface mounting, refer to information document SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL (C10535E).
16
Data Sheet P13541EJ3V0DS00
PC3205GR
[MEMO]
Data Sheet P13541EJ3V0DS00
17
PC3205GR
[MEMO]
18
Data Sheet P13541EJ3V0DS00
PC3205GR
[MEMO]
Data Sheet P13541EJ3V0DS00
19
PC3205GR
* The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. * No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. * NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. No license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC Corporation or others. * Descriptions of circuits, software, and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software, and information in the design of the customer's equipment shall be done under the full responsibility of the customer. NEC Corporation assumes no responsibility for any losses incurred by the customer or third parties arising from the use of these circuits, software, and information. * While NEC Corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. To minimize risks of damage or injury to persons or property arising from a defect in an NEC semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. * NEC devices are classified into the following three quality grades: "Standard", "Special", and "Specific". The Specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. The recommended applications of a device depend on its quality grade, as indicated below. Customers must check the quality grade of each device before using it in a particular application. Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance.
M7 98. 8

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