參數(shù)資料
型號: LMX2335LTMX/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16
封裝: PLASTIC, TSSOP-16
文件頁數(shù): 18/24頁
文件大?。?/td> 631K
代理商: LMX2335LTMX/NOPB
Pin Descriptions (Continued)
Pin No.
Pin
I/O
Description
2336LTM
2336LSLB
2335LTM
2335LSLB
Name
8865
OSC
in
I
Oscillator input. The input has a V
CC/2 input threshold and can be
driven from an external CMOS or TTL logic gate.
9
10
7
6
OSC
out
O
Oscillator output.
10
11
8
7
F
oLD
O
Multiplexed output of the programmable or reference dividers, lock
detect signals and Fastlock mode. CMOS output (see
Programmable Modes).
11
12
9
8
Clock
I
High impedance CMOS Clock input. Data for the various latches
is clocked in on the rising edge, into the 20-bit shift register.
12
14
10
9
Data
I
Binary serial data input. Data entered MSB first. The last two bits
are the control bits. High impedance CMOS input.
13
15
11
10
LE
I
Load enable high impedance CMOS input. When LE goes HIGH,
data stored in the shift registers is loaded into one of the 4
appropriate latches (control bit dependent).
14
16
X
GND
Ground for RF2 analog circuitry.
15
17
X
/f
IN2
I
RF2 prescaler complementary input. A bypass capacitor should
be placed as close as possible to this pin and be connected
directly to the ground plane. Capacitor is optional with loss of
some sensitivity.
16
18
12
11
f
IN 2
I
RF2 prescaler input. Small signal input from the VCO.
17
19
13
12
GND
LMX2335L: Ground for RF2 analog, RF2 digital, MICROWIRE,
F
oLD and Oscillator circuits. LMX2336L: Ground for IF digital,
MICROWIRE, F
oLD and oscillator circuits.
18
20
14
13
D
o 2
O
RF2 charge pump output. For connection to a loop filter for driving
the input of an external VCO.
19
22
15
14
V
p2
Power supply for RF2 charge pump. Must be
≥ V
CC.
20
23
16
15
V
CC2
Power supply voltage input for RF2 analog, RF2 digital,
MICROWIRE, F
oLD and oscillator circuits. Input may range from
2.7V to 5.5V. V
CC2 must equal VCC1. Bypass capacitors should
be placed as close as possible to this pin and be connected
directly to the ground plane.
X
1, 9, 13, 21
X
NC
No connect.
LMX2335L/LMX2336L
www.national.com
3
相關(guān)PDF資料
PDF描述
LMX2335LMX PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16
LMX2335LTM/NOPB PLL FREQUENCY SYNTHESIZER, 1100 MHz, PDSO16
LMX2336LTMX/NOPB PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20
LMX2336LTM/NOPB PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO20
LMX2335USLB PLL FREQUENCY SYNTHESIZER, 1200 MHz, PQCC16
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