 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| AN6454SH Pager Direct Conversion FSK Demodulator Mixer IC s Overview The AN6454SH supports direct conversion FSK demodulation for pagers, and incorporates two mixers. Unit : mm s Features * Low current consumption : 1mA * Incorporates two mixers. 450MHz input frequency. * Small surface-mount package with 0.5mm pitch. 0.10.1 0.5 1 5 10 6 0.20.1 0.6250.10 0.50.2 4.30.3 6.30.3 SOP package with 10 pins (SSOP010-P-0225) s Pin Descriptions Pin No. 1 2 3 4 5 Description MIX bias L-OSC input (1) L-OSC input (2) MIX current control VCC Pin No. 6 7 8 9 10 Description MIX (2) output MIX (1) output GND RF bias RF input s Functional Block Diagram MIX bias L-OSC input (1) L-OSC input (2) MIX Current Control VCC 1 2 3 4 5 BIAS MIX1 10 9 8 7 6 RF input RF bias GND MIX (1) output MIX (2) output MIX2 0.15 +0.1 -0.05 0.6250.10 1.50.2 3.00.3 s Absolute Maximum Ratings (Ta=25C) Parameter Supply voltage Supply current Power dissipation Operating ambient temperature Storage temperature Symbol VCC ICC PD Topr Tstg Rating 4 20 143.5 (Ta=75C) -20 to + 70 -55 to +125 Unit V mA mW C C Note) Protect pins 3, 9, and 10 from electrostatic discharge. s Recommented Operating Range Parameter Operating supply voltage range Symbol VCC Range 1.8 to 3V s Electrical Characteristics (VCC=2.0V, Ta=252C) Parameter Current consumption MIX output level (1) MIX output level (2) Symbol Itot VMIX1 VMIX1 Input Level -54dBm, f=450.0045MHz Input Level -54dBm, f=450.0045MHz Condition min 0.6 -38 -38 typ 1.0 -34 -34 max 1.4 -30 -30 Unit mA dBs dBs s Electrical Characteristics (Design Values for Reference) (VCC=2.0V, Ta=252C) The following are design values for reference only (not guaranteed) Parameter RF bias voltage MIX bias current MIX output level difference Output noise level Symbol VRF VMIX DVmix Vn3 DVmix=Vmix1-Vmix2 Vn3= (Vn2)2 + (Vn2)2 2 -3.2 Condition min typ 0.745 1.3 3.2 25 max Unit V V dB dBs s Pin Descriptions Pin No. Symbol Description Equivalent circuit 1 MIX bias Local oscillator bias. Normally grounded though a capacitor. 2 3 VCC 12k 1 2 L-OSC input 1 Local oscillator inputs to Pin2 w and 3 are different in phase by /2. These inputs are different in frequency by FM Dev from Pin 10 input. 3 L-OSC input 2 4 4 MIX-current control Current input to this pin controls the IC's operation and total current. This pin may be connected to Pin 22 of AN6400. 2.4k 2.4k 5 VCC This is the supply voltage pin. VCC 6 MIX2 output 100 6 Direct-conversion mixer outputs (FM Dev.). These outputs are different in phase by /2 from each other. These pins may be to AN6400 or other direct conversion demodulator ICs for data retrieval. VCC 7 MIX1 output 100 7 s Pin Descriptions (Cont.) Pin No. 8 GND Symbol Description This is the ground pin. Equivalent circuit 9 RF bias This is the bias pin for RF input to Pin 10. The bias us internally provided. This pin must be ground through a capacitor. 10 9 VCC 1.2k 1.2k 10 RF input FSK-modulated RF signals from an RF amplifier are input to this pin. RF signals with up to 450MHz are acceptable. |
Price & Availability of AN6454SH
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |