TX4915 VHF/UHF TRANSMITTER
the wireless IC company
HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information con-
tained in this datasheet is subject to change without prior notice. HiMARK Technology, Inc. assumes no responsibility
for the use of any circuits shown in this datasheet.
Description
The TX4915 is a monolithic integrated circuit intended for use as a low-cost AM/ASK
transmitter. The chip can be used in applications in the north American and European
VHF/UHF bands. The integrated VCO, phase detector, prescaler, and reference oscillator
transistor require only the addition of an external crystal to provide a complete phase-
locked loop. In addition to the standard power-down mode, the chip also includes an auto-
matic lock-detect feature that disables the transmitter output when the PLL is out-of-lock.
Features
OSCOUT
2
DIMENSIONS IN MILLIMETERS
SYMBOLS
DIMENSIONS IN INCHES
A
A1
A2
b
C
D
E
E1
e
L
y
胃
NOTE
1. PACKAGE BODY SIZES EXCLUDE MOLD FLASH AND
GATE BURRS
2. DIMENSION L IS MEASURED IN GAGE PLANE
3. TOLERANCE 0.10 mm UNLESS OTHERWISE SPECIFIED
4. CONTROLLING DIMENSION IS MILLIMETER. CONVERTED
INCH DIMENSIONS ARE NOT NECESSARILY EXACT.
5. FOLLOWED FORM JEDEC MO-137
MIN
1.35
0.10
鈭掆垝鈭?/div>
0.20
0.19
4.80
5.80
3.80
鈭掆垝鈭?/div>
0.40
鈭掆垝鈭?/div>
0擄
NOM
1.60
鈭掆垝鈭?/div>
1.45
0.25
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
0.64
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
MAX
1.75
0.25
鈭掆垝鈭?/div>
0.30
0.25
5.00
6.20
4.00
鈭掆垝鈭?/div>
1.27
0.10
8擄
MIN
0.053
0.004
鈭掆垝鈭?/div>
0.008
0.007
0.189
0.228
0.150
鈭掆垝鈭?/div>
0.016
鈭掆垝鈭?/div>
0擄
NOM
0.064
鈭掆垝鈭?/div>
0.057
0.010
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
0.025
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
鈭掆垝鈭?/div>
MAX
0.069
0.010
鈭掆垝鈭?/div>
0.012
0.010
0.197
0.244
0.157
鈭掆垝鈭?/div>
0.050
0.004
8擄
TXEN
3
VSS
4
PAOUT
5
VSS1
6
VCC1
7
MODIN
8
Page 1
5
K1
R
A9
M4
iX
HT
K
K
K
K
K
K
K
Fully Integrated Frequency Synthesizer
2.2V to 5.5V Voltage Supply Range
Low Current and Power Down Capability
Integrated VCO and Reference Oscillator
integeated 64/128 Dual Modulus Prescaler
100MHz to 960MHz frequency Range
Out-of-Lock inhibit Circuit
Package and Pin Assignment
16 pin, plastic SSOP (dimensions in mm)
胃
OSCIN
1
16
SW
15
LD
14
DO
13
RES
12
RESB
11
VREFP
10
VSS2
9
VCC2
March 2000
TX4915相關(guān)型號PDF文件下載
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型號
版本
描述
廠商
下載
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英文版
TX4915 VHF/UHF TRANSMITTER
ETC
-
英文版
TX4915 VHF/UHF TRANSMITTER
ETC [ETC]
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英文版
64-Bit TX System RISC TX49 Family
TOSHIBA [T...
-
英文版
64-Bit TX System RISC
TOSHIBA [T...
-
英文版
TX System RISC TX49 Family (64-bit RISC Processors)
Toshiba
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