參數(shù)資料
型號: DS1710
廠商: DALLAS SEMICONDUCTOR
元件分類: 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
文件頁數(shù): 12/12頁
文件大?。?/td> 283K
代理商: DS1710
AD6459
–12–
REV. 0
C
P
AD6459 EVALUATION BOARD
The AD6459 evaluation board (Figure 27) consists of a
AD6459, ground plane, I/O connectors, and a 19.5 MHz band
pass filter. The RF, LO and FREF ports are terminated in 50
to provide a broadband match or external signal generators.
The board provides SMA connectors for the RF, LO, demodu-
lator reference, mixer output and IF input signals. The MXOP
and IFIP connectors are left unconnected and are provided as a
testing convenience. Footprints for broadband matching trans-
formers and matching components are also provided to aid in
stage breakout testing.
The remaining low frequency signals, including the I and Q
interface, bias and power connections are made via a dual row
pin header that acts as an Interface Connector located along the
edges of the board. An on-board gain-reference 1.2 V biasing
option is provided via a single jumper, J1. The evaluation board
will not function without this jumper unless an external bias
GREF is provided from an external reference that is normally
provided by the associated ADC.
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
20
11
10
1
0.295 (7.50)
0.271 (6.90)
0
0
0
0
PIN 1
SEATING
PLANE
0.008 (0.203)
0.002 (0.050)
0.07 (1.78)
0.066 (1.67)
0.0256
(0.65)
BSC
0.078 (1.98)
0.068 (1.73)
0.009 (0.229)
0.005 (0.127)
0.037 (0.94)
0.022 (0.559)
8
°
0
°
Full Path Configuration
As received, the board is configured for full-path evaluation
from RFHI to the I and Q outputs. The one-pole LC resonant
circuit provided represents a simple, yet balanced, IF bandpass
filtering approach. The filter supplied is centered at 19.5 MHz,
a common GSM intermediate frequency. Table I highlights the
filter component values for other IF frequencies. RFHI and
RFLO are true differential inputs, however for testing conve-
nience, the RFLO terminal of the AD6459 is ac referenced to
ground on the evaluation board. The GAIN bias input, which is
bypassed with a 10 nF capacitor, is brought out to the interface
connector. The PRUP input is provided with a 20 k
pull up
resistor to V
POS
that activates the board.
The four differential I and Q outputs are brought out uncondi-
tioned, directly to the interface connector. A high impedance,
high bandwidth FET-type probe should be used when measur-
ing the I and Q ports. Excessive capacitive or resistive loading of
these ports will severely limit the video bandwidth and signal
swing. The demodulator PLL filter installed on the evaluation
board (R8, C10) can accommodate the full VFQO lock range
specified.
相關(guān)PDF資料
PDF描述
DS1742 Y2KC Nonvolatile Timekeeping RAM(Y2KC非易失性計時RAM)
DS1743 Y2KC Nonvolatile Timekeeping RAM(Y2KC非易失性計時RAM)
DS1743P Y2KC Nonvolatile Timekeeping RAM(Y2KC非易失性計時RAM)
DS17487 3 Volt/5 Volt Real Time Clock(3V/5V實時時鐘)
DS17485 3 Volt/5 Volt Real Time Clock(3V/5V實時時鐘)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1710EN 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
DS1710S/T&R/C01 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
DS17-12A 功能描述:整流器 17 Amps 1200V RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復(fù)時間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel
DS171G 制造商:Cooper Crouse-Hinds 功能描述:
DS1720 制造商:Maxim Integrated Products 功能描述: