AN6454SH PANASONIC | Alldatasheet
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Technical content
The AN6454SH supports direct conversion FSK demodula- tion for pagers, and incorporates two mixers. n Features
- Low current consumption : 1mA
- Incorporates two mixers. 450MHz input frequency.
- Small surface-mount package with 0.5mm pitch. AN6454SH Pager Direct Conversion FSK Demodulator Mixer IC 0.5 0.1–0.1 0.5–0.2 1.5–0.2 3.0–0.3 4.3–0.3 6.3–0.3 0.625–0.10 0.15 +0.1 –0.05 0.625–0.10 Unit : mm SOP package with 10 pins (SSOP010-P-0225) 0.2–0.1 MIX1 MIX2 RF input RF bias GND MIX (1) output MIX (2) output BIAS MIX bias L-OSC input (1) L-OSC input (2) MIX Current Control V CC n Functional Block Diagram n Pin Descriptions Pin No. Description MIX bias L–OSC input (1) L–OSC input (2) MIX current control V CC Pin No. Description MIX (2) output MIX (1) output GND RF bias RF input
Param eter Sym bol R ating U nit n A bsolute M axim um R atings (Ta=25˚C ) Supply voltage Supply current Pow er dissipation O perating am bient tem perature Storage tem perature V C C IC C PD Topr Tstg 143.5 (Ta=75˚C ) –20 to + 70 –55 to +125 V m A m W N ote) Protect pins 3, 9, and 10 from electrostatic discharge. Param eter Sym bol R ange n R ecom m ented O perating R ange V C C 1.8 to 3VO perating supply voltage range Param eter Sym bol C ondition m in typ m ax U nit n Electrical C haracteristics (V C C =2.0V , Ta=25–2˚C ) C urrent consum ption 0.6Itot 1.4 m A1.0 Input Level –54dB m , f=450.0045M H zM IX output level (1) –38V M IX 1 –30 dB s–34 M IX output level (2) –38V M IX 1 –30 dB s–34Input Level –54dB m , f=450.0045M H z Param eter Sym bol C ondition m in typ m ax U nit n Electrical C haracteristics (D esign V alues for R eference) (V C C =2.0V , Ta=25–2˚C ) R F bias voltage V R F V0.745 M IX bias current V M IX V1.3 M IX output level difference –3.2D V m ix 3.2 dB 25 dB s D V m ix=V m ix1–V m ix2 The follow ing are design values for reference only (not guaranteed) O utput noise level V n3 V n3= (V n2)2 + (V n2)2
Sym bol D escription Equivalent circuit Local oscillator bias. N orm ally grounded though a capacitor.M IX bias Pin N o.
2 L-O SC input 1
3 L-O SC input 2
Local oscillator inputs to Pin2 w and 3 are different in phase by π/2. These inputs are different in frequency by FM D ev from Pin 10 input.
4 M IX -current
C urrent input to this pin controls the IC 's operation and total current. This pin m ay be connected to Pin 22 of A N 6400. 5 V C C This is the supply voltage pin. D irect-conversion m ixer outputs (FM D ev.). These outputs are different in phase by π/2 from each other. These pins m ay be to A N 6400 or other direct conversion dem odulator IC s for data retrieval.
6 M IX 2 output
7 M IX 1 output
100Ω V C C 100Ω V C C 2.4kΩ 12kΩ 2.4kΩ
Sym bol D escription Equivalent circuit This is the bias pin for R F input to Pin 10. The bias us internally provided. This pin m ust be ground through a capacitor.R F bias Pin N o. 8 G N D This is the ground pin. FSK -m odulated R F signals from an R F am plifier are input to this pin. R F signals w ith up to 450M H z are acceptable. R F input 1.2kΩ 10 9 V C C 1.2kΩ n Pin D escriptions (C ont.)