STV0299B STMicroelectronics, STV0299B Datasheet - Page 9

• Manufacturer Part Number: STV0299B
• Manufacturer: STMicroelectronics

Specifications of STV0299B

• Pin Count: 64
• Screening Level: Commercial
• Lead Free Status / Rohs Status: Specific Sites Compliant

4
Figure 4:
Note:
Table 1:
VCO
ON/OFF
FUNCTIONAL DESCRIPTION (continued)
VCO
LPF
M(4:0) in register
K(1:0) in register
1
2
TO SERIAL
SHIFTER
Refer to the Register List P[2:0] in table 1
At the rising edge of RESET signal (pin 15) the corresponding bit of the I
to DIRCLK-DIS.
1/6
00000
00001
00010
00011
11111
Clock Signal Generation
00
01
10
11
Divider Programming
...
1/4
I
Reg 01[4:0]
2
÷(M+1)
C
f
PRESCALER
REF
= f
multiplied by:
Note 2
f
VCO
XTAL
1/16
VCO ON/OFF
128
12
16
PHASE
COMPARATOR
...
1
2
3
4
4
8
= f
divided by:
DIRCLK (I
REF
2
PROGRAMABLE
DIVIDER
C bit)
÷P(Note 1)
Reg 02[2:0]
÷R
DIRCLK-CTRL
Reg 04
Table 2:
f
f
÷(K+1)
V CO
M_CLK
f
M_CLK
1/2
f
Reg 01[7:6]
P(2:0) in register
M_CLK
=
=
1
0
f
2
=
X TAL
C bus register is forced to the status of pin STDBY or
f
DiSEqC/tone
burst modulator
CLK_IN
f
----------- -
1/0
1/2
=
000
001
010
011
100
101
110
111
V CO
P
Summary of F
OSC
0
STDBY
(I
2
4
C bit)
M
--------------
K
Reg 03
+
+
Note 2
1/0
1
1
Reg 08[2:0]
DIRCLK_CTRL = 0
DIRCLK_CTRL =1
STDBY = 1
M_CLK
I
2
f
divided by P:
C
M_CLK
STV0299B
XTAL IN/CLK-IN
M_CLK
AUX_CLK
XTAL OUT
STDBY
12
16
24
32
48
DIRCLK-DIS
F22/
DiSEqC
4
6
8
= f
VCO
TM
9/36