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PDF U6239B Data sheet ( Hoja de datos )
| Número de pieza | U6239B | |
| Descripción | 2.9 GHz PLL | |
| Fabricantes | TEMIC Semiconductors | |
| Logotipo |  |
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U6239B
2.9 GHz PLL for SAT TV Tuner with UNi-Bus
Description
The U6239B is a single-chip frequency synthesizer with
bidirectional I2C bus control and unidirectional 3-wire
bus control, developed for SAT TV-tuner and cable tuner
applications.
This IC contains an integrated preamplifier, a high
frequency prescaler, a reference divider with multiple
programmable divider ratios, a crystal oscillator, a phase/
frequency detector together with a charge pump, a tuning
amplifier and an analog-to-digital converter.
Features
D 2.9 GHz divide-by-16 prescaler integrated
D UNi-BUS:
I2C bus and 3-wire bus
I2C bus software compatible to U6223B
3-wire bus software compatible to LC7215 (Sanyo)
D I2C bus mode:
4 bidirectional ports (open collector)
2 unidirectional ports (open collector)
5 level ADC or unidirectional port (open collector)
Address mode select function (AMS, Pin 3):
3 or 4 addresses selectable via Pin 10
D 3-wire bus mode:
4 unidirectional ports (open collector)
Lock output (open collector)
D Programmable reference divider
D Low power consumption (typ. 5 V / 23 mA)
D Electrostatic protection according to MIL-STD 883
Block Diagram
AS / ENABLE / P3
10
SCL 5
SDA 4
UNI–BUS
Control
5–bit Latch
Vs 12
Power–on
reset POR
GND 15
7–bit Latch
8–bit Latch
7–bit Latch
T1
14–bit Shift Reg.
14
RFi
13
RDS / AMS 3
XTAL 2
Sync 15–bit Latch
T0 5I RD1,2,3
LOCK
div. by 16
Prescaler
AMS SET
RDS
15/14–bit
counter
Oscillator
divide by 256/512/off/1024
divide by 25/50/140/250
divide by 50/100/280/500
Phase
detector
Charge
pump
FP
FR
Figure 1.
ADC
I/O
Ports
11 P0/Lock
9 P4
8 P5
7 P6 / ADC
6 P7
OS
16 VD
1 PD
9611809
TELEFUNKEN Semiconductors
Rev. A3, 28-May-97
1 (15)
DataSheet4 U .com
1 page  
www.DataSheet4U.com
U6239B
Electrical Characteristics (continued)
Parameters
Test Conditions / Pins
Symbol
ADC input (ADC, Pin 7, see page 8 for ADC-levels)
Input current high
Vi ‘H’ = 13.2 V
Ii ‘H’
Input current low
Vi ‘L’ = 0 V
Ii ‘L’
Charge pump output (PD)
Charge pump current ‘H’
5I = 1, VPD = 1.7 V, Pin 1
IPDH
Charge pump current ‘L’
5I = 0, VPD = 1.7 V, Pin 1
IPDL
Charge pump leakage current T0 = 1, VPD = 1.7 V, Pin 1
IPDTRI
Charge pump amplifier gain Pins 1 and 16
Bus inputs Data and Clock (SDA, SCL) I2C bus mode and 3-wire bus mode
Input voltage high
Pins 4 and 5
Vi ‘H’
Input voltage low
Pins 4 and 5
Vi ‘L’
Input current high
Input current low
Vi ‘H’ = VS, Pins 4 and 5
Vi ‘L’ = 0 V, Pins 4 and 5
Ii ‘H’
Ii ‘L’
Output voltage SDA
(open collector)
ISDA‘L’ = 3 mA, Pin 4
VSDA ‘L’
Bus input Enable, 3-wire bus mode (ENABLE, Pin 10)
Input voltage high
Pin 10
Vi ‘H’
Input voltage low
Pin 10
Input current high
Vi ‘H’ = VS, Pin 10
Input current low (RDS = ‘L’) Vi ‘L’ = 0 V, Pin 10
Input current low (RDS = ‘H’) Vi ‘L’ = 0 V, Pin 10
Address selection / port output (AS/P3, Pin 10)
Input current low (AMS = L) Vi ‘L’ = 0 V (3 address)
Input current high (AMS = L) Vi ‘H’ = 13.2 V (3 address)
Input current low (AMS = H) Vi ‘L’ = 0 V (4 address)
Input current high (AMS = H) Vi ‘H’ = VS (4 address)
Reference divider select/Address mode select (RDS, AMS)
Input voltage high
Pins 4 and 5
Input voltage low
Pins 4 and 5
Input current high
Input current low
Vi ‘H’ = VS, Pins 4 and 5
Vi ‘L’ = 0 V, Pins 4 and 5
Vi ‘L’
Ii ‘H’
Ii ‘L’
Ii ‘L’
Ii ‘L’
Ii ‘H’
Ii ‘L’
Ii ‘H’
Vi ‘H’
Vi ‘L’
Ii ‘H’
Ii ‘L’
Min. Typ. Max.
–10
" 180
" 50
"5
6400
10
3 5.5
1.5
10
–20
0.4
75%
VS
–10
–100
–10
–100
3
–20
VS +
0.3 V
1.0
10
10
10
5.5
1.5
10
Notes:
1) RMS - voltage calculated from the measured available power on 50 W.
2) Tested with one port active. The collector voltage of an active port must not exceed 6 V.
Unit
mA
mA
mA
mA
nA
V
V
mA
mA
V
V
V
mA
mA
mA
mA
mA
mA
mA
V
V
mA
mA
TELEFUNKEN Semiconductors
Rev. A3, 28-May-97
DataSheet4 U .com
5 (15)
5 Page 
www.DataSheet4U.com
Typical Prescaler Input Sensitivity
Vi (mVrms on 50 W )
1000
100 Operating window
10
U6239B
1
0 500 1000
Typical Input Impedence
0.5j
1500
2000
Frequency (MHz)
2500
3000
j
2j
3500
4000
9611877
0.2j
0
0.2
4.0 GHz
3.5 GHz
0.5
3.0 GHz
1
–0.2j
2.5 GHz
2.0 GHz
–0.5j
1.5 GHz
–j
Figure 5.
5j
2 51
100MHz
500 MHz
–5j
1 GHz
–2j
Z0 = 50 Ω
9611878
TELEFUNKEN Semiconductors
Rev. A3, 28-May-97
DataSheet4 U .com
11 (15)
11 Page | ||
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