LV2700V Datasheet, PDF (4/9 Pages) Sanyo Semicon Device – Spread Spectrum Communications IC

LV2700V
Pin Functions
Pin No.
1
Pin
RFV_CC
Pin voltage(V)
Pin function
RF block power supply
2
REXT
0.2
Connection for the external capacitor and resistor
used by the internal RF amplifier
3
RFIN
4
RFGND
1
RF input
RF block ground
5 ANTDUMP
Output for the DC voltage used under strong
1.2
reception conditions to prevent saturation of the
RF amplifier.
Voltage variability range: about 0.5 V
6
RXV_CC
Reception block power supply
7
BIASIN
DC bias voltage for the demodulation signal
processing block (LPF, amplifier, limiter)
Equivalent circuit
8
RXOUT
Demodulated data output
(This is an open drain output.)
9 LOCK DET
Outputs a high level when PN code
synchronization is established.
(This is a CMOS-level output.)
10
CEXT
Same as
V7
Amplifier output for demodulated output.
The pin 8 output data is made valid by connecting
a capacitor between this pin and ground.
Continued on next page.
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