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FX465 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Extended Code CTCSS Encoder/Decoder - CML

भाग संख्या FX465
समारोह Extended Code CTCSS Encoder/Decoder
मैन्युफैक्चरर्स CML 
लोगो CML लोगो 
पूर्व दर्शन
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<?=FX465?> डेटा पत्रक पीडीएफ

FX465 pdf
Pin Number
FX465 D5
1 VDD: Positive supply.
Function
2 Xtal/CIock: Input to the on-chip inverter; used with a 4.0MHz Xtal or external clock source.
3 Xtal: Output of the on-chip inverter (clock output).
4 Load/Latch: Controls 8 on-chip latches and is used to latch Rx/Tx, PTL, D - D . This pin is internally
05
pulled to VDD. A logic ‘1’ applied to this input puts the 8 latches into a 'transparent' mode. A logic ‘0’
applied to this input puts the 8 latches into the ‘latched’ mode.
In parallel mode data is loaded and latched by a logic ‘1’ to ‘0’ transition (see Figure 4).
In serial mode data is loaded and latched by a ‘0’ to ‘1’ to ‘0’ strobe pulse on this pin (see Figure 4).
5
D /Serial Enable: Data input D (Parallel Mode); Serial Enable (Serial Mode).
55
A logic ‘l’ applied to this input, together with a logic ‘0’ applied to D4/Serial Enable, will put the device
into 'Serial Mode' (see Figure 4). This pin is internally pulled to VDD.
6 D4/Serial Enable: Data input D4 (Parallel Mode); Serial Enable (Serial Mode).
A logic ‘0’ applied to this input, together with a logic ‘1’ applied to D5/Serial Enable, will place the device
into ‘Serial Mode’ (see Figure 4). This pin internally pulled to V .
DD
7 D3/Serial Data In: Data input D3 (Parallel Mode); Serial Data Input (Serial Mode).
In Serial Mode this pin becomes the serial data input for D5 - D0, Rx/Tx, PTL (see Figure 4). D5 is
clocked-in first and PTL last. This pin internally pulled to V .
DD
8 D2/Serial Clock: Data input D2 (Parallel Mode); Serial Clock Input (Serial Mode).
In Serial Mode this pin becomes the Serial Clock input. Data is clocked on the positive-going edge (see
Figure 4). This pin is internally pulled to VDD.
9 D1: Data input D1 (Parallel Mode); Not used (Serial Mode). This pin is internally pulled to VDD.
10
D : Data input D (Parallel Mode); Not used (Serial Mode). This pin is internally pulled to V .
00
DD
11 VSS: Negative supply.
12
Decode Comparator
the logical state of the
RRexfT. o(In/Pe):DeInctoedrneaplliyn.bRiaxseTdontoeVDDeD/c3odoer 2=VlDoDg/3ic
via
‘1’
1.0Mresistors depending
will bias this input to 2VDD/3,
on
a
logic ‘0’ will bias this input to VDD/3. This input provides the decode comparator reference voltage;
switching of bias voltages provides hysteresis to reduce 'chatter' under marginal conditions.
2

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डाउनलोड[ FX465 Datasheet.PDF ]


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