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TSA5055T 데이터시트 PDF




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부품번호 TSA5055T 기능
기능 2.65 GHz bidirectional I2C-bus controlled synthesizer
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TSA5055T 데이터시트, 핀배열, 회로
INTEGRATED CIRCUITS
DATA SHEET
TSA5055T
2.65 GHz bidirectional I2C-bus
controlled synthesizer
Product specification
Supersedes data of November 1991
File under Integrated Circuits, IC02
1999 Aug 11




TSA5055T pdf, 반도체, 판매, 대치품
Philips Semiconductors
2.65 GHz bidirectional I2C-bus controlled
synthesizer
Product specification
TSA5055T
PINNING
SYMBOL
PD
Q1
Q2
SDA
SCL
P7
P6
P5
P4
P3
P0
VCC
RFIN1
RFIN2
GND
UD
PIN DESCRIPTION
1 charge-pump output
2 crystal oscillator input 1
3 crystal oscillator input 2
4 serial data input/output
5 serial clock input
6 port output/input (general
purpose)
7 port output/input (ADC)
8 port output/input (general
purpose)
9 port output/input (general
purpose)
10 port output (also used for address
selection)
11 port output
12 voltage supply
13 RF signal input 1
14 RF signal input 2 (decoupled)
15 ground
16 drive output
handbook, halfpage
PD 1
Q1 2
Q2 3
SDA 4
SCL 5
P7 6
P6 7
P5 8
16 UD
15 GND
14 RFIN2
13 RFIN1
TSA5055T
12 VCC
11 P0
10 P3
9 P4
MBC304
Fig.2 Pin configuration.
FUNCTIONAL DESCRIPTION
General
The TSA5055T is controlled via the 2-wire I2C-bus. For
programming, there is one (7-bit) module address and the
R/W bit for selecting READ or WRITE mode.
WRITE mode: R/W = 0; see Table 1
After the address transmission (first byte), data bytes can
be sent to the device. Four data bytes are needed to fully
program the TSA5055T. The bus transceiver has an
auto-increment facility that permits the programming of the
TSA5055T within one single transmission (address + four
data bytes).
The TSA5055T can also be partly programmed on the
condition that the first data byte following the address is
byte 2 or byte 4.
The meaning of the bits in the data bytes is given in
Table 1. The first bit of the first data byte transmitted
indicates whether frequency data (first bit = 0) or
charge-pump and port information (first bit = 1) will follow.
Until an I2C-bus STOP condition is sent by the controller,
additional data bytes can be entered without the need to
re-address the device. This allows a smooth frequency
sweep for fine tuning. At power-on, the ports are set to the
high-impedance state.
The 7.8125 kHz reference frequency is obtained by
dividing the output of the 4 MHz crystal oscillator by 512.
Because the input of the RF signal is first divided by 16,
the step size is 125 kHz. A 3.2 MHz crystal can offer a step
size of 100 kHz.
1999 Aug 11
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TSA5055T 전자부품, 판매, 대치품
Philips Semiconductors
2.65 GHz bidirectional I2C-bus controlled
synthesizer
Product specification
TSA5055T
+12 V
handbook, full pagewidth
+5 V
SATELLITE
MIXER
OSCILLATOR
PART
oscillator
outputs
+33 V
varicap VT
input
22 k
IF signal
IF SECTION
AFC
OUTPUT
P0
P3
P4
9 8 P5
P6
10 7
1 nF
1 nF
0.1 µF
11 6 P7
12 5
TSA5055T
13 4
14 3
15 2
I2C-bus
4 MHz
SCL
SDA
18 pF
MICRO-
CONTROLLER
16 1
39 nF
180 nF
BC847B
22 k
FCE048
1999 Aug 11
Fig.3 Symmetrical application diagram.
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부품번호상세설명 및 기능제조사
TSA5055T

2.65 GHz bidirectional I2C-bus controlled synthesizer

NXP Semiconductors
NXP Semiconductors

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