U6239B

Features:

2.9 GHz divide-by-16 prescaler integrated
UNi-BUS:
  I²C bus and 3-wire bus
  I²C bus software compatible to U6223B
  3-wire bus software compatible to LC7215 (Sanyo)
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
3-wire bus mode:
  4 unidirectional ports (open collector)
  Lock output (open collector)
Programmable reference divider
Low power consumption (typ. 5 V / 23 mA)
Electrostatic protection according to MIL-STD 883


Pinout




Specifications

Parameters	Symbol	Conditions	Min.	Max.	Unit
Supply voltage                               Pin 12	Vs		0.3	6	V
RF input voltage                             Pins 13, 14	RFi		0.3	Vs + 0.3	V
Port output current                        Pins 6-11	P0, P3-7	Open collector	1	15	mA
Total port output current               Pins 6-11	P0, P3-7	Open collector	1	50	mA
Port input/ output voltage             Pins 6-10	P3-7	In off state	0.3	14	V
Port output voltage                       Pins 6-11	P0, P3-7	In on state	0.3	6	V
Bus input/ output voltage             Pins 4 and 5	VSDA, VSCL		0.3	6	V
SDA output current                       Pin 4	ISDA	Open collector	1	5	mA
Address select/ Enable input        Pin 10 Port output voltage	AS/ ENABLE/ P3	Port in off state	0.3	14	V
Charge pump output voltage       Pin 1	PD		0.3	Vs + 0.3	V
Active filter output voltage           Pin 16	VD		0.3	Vs + 0.3	V
Crystal oscillator voltage             Pin 2	Q1		0.3	Vs + 0.3	V
Reference divider select input/    Pin 3 Address mode select input	RDS/ AMS		0.3	VS + 0.3	V
Junction temperature	Tj		40	125	°C
Storage temperature	Tstg		40	125	°C

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.

U6239B 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.