SL1935D ETC, SL1935D Datasheet - Page 7

• Manufacturer Part Number: SL1935D
• Description: Single Chip Synthesized Zero IF Tuner
• Manufacturer: ETC

Table 9a. Write data format (MSB is transmitted first)
Table 9b. Read data format (MSB is transmitted first)
Programmable
divider
Programmable
divider
Control data
Control data
Status Byte
Address
Address
START 950MHz
Normalised to 75 Ω
—j0.2
+j0.2
0
Key to Tables 9a to 9c
A ......................................... Acknowledge bit
MA1, MA0 ........................... Variable address bits (Table 9c)
2
C1 to C0 .............................. Charge pump current select (Table 5)
R4 to R0 .............................. Reference division ratio select (Table 3)
T2 to T0 .............................. Test modes control bits (Table 4)
BS ....................................... Baseband path select (Table 6)
VS ....................................... Local oscillator select (Table 8)
RE ....................................... Buffered crystal reference output enable (Table 7)
P0 ....................................... P0 port output state
POR .................................... Power on reset indicator
FL ........................................ Phase lock flag
0.2
Note: * Programmed by connecting a 30kΩ resistor between pin and Vcc
14
—j0.5
+j0.5
MSB
MSB
to 2
POR
T2
2
1
0
1
1
Table 9c. Address selection
7
0
0.5
................................ Programmable division ratio control bits
MA1
0
0
1
1
X
4
2
C1
T1
FL
2
1
14
1
6
Figure 3. RF input impedance (typical)
X
3
—j1
1
+j1
X
2
MA0
0
1
0
1
2
C0
X
T0
2
2
0
0
0
13
1
5
—j2
5
+j2
2
VS
R4
2
0
0
0
12
4
X
STOP 2150MHz
Address input voltage level
+j5
—j5
2
R3
BS
0
0
2
0
11
0.4 Vcc - 0.6 Vcc*
3
Open circuit
0.9 Vcc - Vcc
0 - 0.1 Vcc
Marker
MA1
MA1
2
R2
1
2
3
4
2
0
0
10
2
Freq (MHz)
MA0
MA0
1400
1600
2150
R1
RE
2
2
950
0
9
1
LSB
LSB
R0
P0
2
1
0
Z real Ω
0
2
0
8
64
40
32
23
A
A
A
A
A
A
A
Z imag Ω
-100
-75
-65
-45
Byte 1
Byte 2
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
SL1935
7