參數(shù)資料
型號(hào): DS1710
廠(chǎng)商: DALLAS SEMICONDUCTOR
元件分類(lèi): 微控制器/微處理器
英文描述: Partitioned NV Controller(分割式非易失性控制器)
中文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PDIP16
封裝: 0.300 INCH, DIP-16
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 283K
代理商: DS1710
AD6459
–3–
REV. 0
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD6459 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
ABSOLUTE MAXIMUM RATINGS
1
Supply Voltage VPS1, VPS2 to COM1, COM2 . . . . . +5.5 V
Internal Power Dissipation
2
. . . . . . . . . . . . . . . . . . . 600 mW
Operating Temperature Range . . . . . . . . . . . –40
°
C to +85
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature, Soldering (60 sec) . . . . . . . . . . . .+300
°
C
NOTES
1
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only, and functional
operation of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended rating conditions for extended periods
may affect device reliability.
2
Thermal Characteristics: 20-lead SSOP package:
θ
JA
= 126
°
C/W.
ORDERING GUIDE
Temperature
Range
Package
Description
Package
Option
Model
AD6459ARS
–25
°
C to +85
°
C
for 2.7 V to 5.5 V
–40
°
C to +85
°
C
for 3.3 V to 5.5 V
20-Pin Plastic
SSOP
RS-20
PIN DESCRIPTIONS
Pin
Label
FREF
Pin
1
Description
Frequency Reference Input
Function
Demodulation LO Input. May either be 3 V CMOS input or >100 mV p-p.
AC-coupled for lowest stand by current.
Ground.
CMOS Compatible Power-Up Control; <1.5 V = OFF, >1.5 V = ON.
AC-Coupled LO Input. 50 mV p-p
drive needed, 500 mV p-p max.
Mixer Differential Input. AC-coupled.
Mixer Differential Input. AC-coupled.
Ground.
High Impedance Input. Sets gain scaling, typically 1.2 V.
Differential Output of the Mixer. See Figure 22.
Differential Output of the Mixer. See Figure 22.
Differential Input of Variable Gain Amplifier. AC-coupled.
Differential Input of Variable Gain Amplifier. AC-coupled.
0.2 V–2.4 V Using 3 V Supply. Max gain at 0.2 V.
Differential Q Output. Output resistance 4.7 k
.
Differential Q Output. Output resistance 4.7 k
.
Differential I Output. Output resistance 4.7 k
.
Differential I Output. Output resistance 4.7 k
.
Supply Voltage.
Series RC Loop Filter. Connected to VPS2.
Supply Voltage.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
COM1
PRUP
LOIP
RFLO
RFHI
COM2
GREF
MXOP
MXOM
IFIP
IFIM
GAIN
QRXN
QRXP
IRXN
IRXP
VPS2
FLTR
VPS1
Common 1
Power Up Input
Local Oscillator Input
RF “Low” Input
RF “High” Input
Common 2
Gain Reference Input
Mixer Output “Plus”
Mixer Output “Minus”
IF Input “Plus”
IF Input “Minus”
Gain Control Input
Q Output “Negative”
Q Output “Positive”
I Output “Negative”
I Output “Positive”
VPOS Supply 2
PLL Loop Filter
VPOS Supply 1
PIN CONNECTION
20-Pin SSOP (RS-20)
14
13
12
11
17
16
15
20
19
18
10
9
8
1
2
3
4
7
6
5
(TOP VIEW
AD6459
FREF
IRXP
VPS2
FLTR
VPS1
COM1
PRUP
LOIP
QRXN
QRXP
IRXN
RFLO
RFHI
COM2
GREF
MXOP
MXOM
IFIP
IFIM
GAIN
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