U6239B Datasheet, PDF (2/15 Pages) TEMIC Semiconductors – 2.9 GHz PLL for SAT TV Tuner with UNi-Bus

U6239B
Ordering Information
Extended Type Number
U6239B-AFPG3
Package
SO16, plastic package
Remarks
Taped and reeled
SSO16 package on request
Pin Configuration
PD ₁
Q1 2
RDS/AMS ₃
SDA ₄
SCL ₅
P7 ₆
P6/ ADC ₇
P5 ₈
16 ^VD
15 GND
Pin Symbol
Function
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁
PD
Charge pump output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2
Q1
Crystal input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ³
RDS/ Reference divider select input
AMS (3-wire bus mode)
Address mode select input
95 10947
14 ^RFi
13 ^RFi
12 ^VS
11 ^{P0/ Lock}
10 ^AS/ENABLE/
P3
9 ^P4
(I²C bus mode)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 4
SDA Data input/ output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ⁵
SCL Clock input
6
P7
Port 7 input/ output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₇
P6/
Port 6 output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{ADC Analog-Digital-Converter input}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₈
P5
Port 5 input/ output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₉
P4
Port 4 input/ output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 10
AS/
Address select input
ENABLE/ Enable input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _P3
Port 3 output
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ _{11 P0/Lock Port 0 output/Lock output}
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₂
V_S
Supply voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₃
RFi
RF input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₄
RFi
RF input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 15
GND Ground
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ¹⁶
VD
Active filter output
Circuit Description
The U6239B is a single-chip PLL designed for SAT TV
tuner and cable tuner. It consists of a divide-by-16
prescaler with an integrated preamplifier, a 15-bit
programmable divider, a crystal oscillator, and a
reference divider with selectable divider ratios, a phase/
frequency detector together with a charge pump which
drives the tuning amplifier. Only one external transistor
is required for varactor line driving. The device can be
controlled via I²C bus format or via 3-wire bus format. It
detects automatically which bus format has been
received. Therefore, there is no need for a bus selection
pin. In I²C bus mode, the device has four programmable
or one fixed and three programmable I²C bus addresses,
depending on the voltage level at Pin 3. They are
programmed by applying a specific input voltage to the
address select input Pin 10, enabling the use of up to four
synthesizers in a system. If the fixed address is used, this
pin can be used as a normal output port. The same pin
serves as the enable signal input in 3-wire bus mode.
Depending whether the fixed address is used or not there
are five or six open collector outputs for switching
functions available. In 3-wire bus mode there are four
open collector outputs and one lock signal output. All
open collector outputs are capable of sinking at least
10 mA. In I²C bus mode an analog-to-digital converter
(ADC) is available for digital AFC (automatic frequency
control) applications and the ports P4, P5 and P7 can also
be used as input ports.
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TELEFUNKEN Semiconductors
Rev. A3, 28-May-97