參數(shù)資料
型號(hào): P95020NQG8
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132
封裝: 10 X 10 MM, 0.85 MM HEIGHT, QFN-132
文件頁數(shù): 139/169頁
文件大?。?/td> 4297K
代理商: P95020NQG8
IDTP95020
Product Datasheet
September 2, 2011 Revision 1.3 Final
71
2011 Integrated Device Technology, Inc.
CLOCK GENERATOR MODULE
Features
High-quality, high-frequency external clock outputs
generated from a TCXO input or a crystal connected
between HXTALIN and HXTALOUT
32.768 kHz crystal oscillator or
32.768 kHz clock input for system start-up
3.3V core operating voltage
1.2V/1.8V TCXO output voltage
3.3V SYS_CLK, USB_CLK
and 32KHZ clock output voltages
Description
The IDTP95020 includes a highly accurate, low power
clock synthesizer designed exclusively for portable
applications. The IDTP95020 will generate high quality,
high-frequency clock outputs from a 12 MHz, 13 MHz,
19.2 MHz or 26 MHz TCXO input or crystal oscillator. The
IDTP95020’s clock generator (CKGEN) module also
includes a 32 kHz oscillator and output which are
connected to a separate low power supply, to facilitate
system start-up. The clock generator module also
generates clocks at different rates for on-chip operation.
PLL
Xtal
oscillator, RC-
Oscillator
dividers
CLK32K
12MHz
24MHz
48MHz
HXTAL
OSC
VDDIO_CK
VDD_CKGEN33
VDDIO_CK
SYS_CLK
USB_CLK
32KHZ_OUT2
H
X
TA
LO
U
T/
TCX
O
_I
N
I2C
SUB-BLOCK
MICROCONTROLLER
SUB-BLOCK
UPPER BYTE
OFFSET: 0xA0
HX
TA
L
IN
/
TC
XO
_
O
U
T
1
32
KH
Z_
CL
K
IN
/
XT
AL
IN
32K
H
Z
_
O
UT
1/
XT
AL
O
UT
PLL STATUS REGISTER
0x35 [7:0]
VDDIO_CK
CKGEN PLL CONFIGURATION REGISTER
0x34 [7:0]
CKGEN_GND
TCXO_OUT2
Figure 16. Clock Generator Block Diagram
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