max2104ccmtd Maxim Integrated Products, Inc., max2104ccmtd Datasheet - Page 7
max2104ccmtd
Manufacturer Part Number
max2104ccmtd
Description
Max2104 Direct-conversion Tuner Ic For Digital Dbs Applications
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX2104CCMTD.pdf
(9 pages)
Figure 1. Timing Diagram
PIN
34
35
36
37
38
42
43
44
47
48
—
PSOUT+
PSOUT-
MOD+,
MOD-
PSOUT+
PSOUT-
PLLIN+
TANK+
PLLIN-
NAME
TANK-
MOD-
VRLO
CP
FB
EP
_______________________________________________________________________________________
50%
PECL Modulus Control. A PECL low on MOD- sets the dual-modulus prescaler to divide by 32. A PECL
logic high sets the divide ratio to 33. Drive with a differential PECL signal with MOD+ (pin 33).
PECL Phase-Locked Loop Input. Drive with a differential PECL signal with PLLIN- (pin 36).
PECL Phase-Locked Loop Input. Drive with a differential PECL signal with PLLIN+ (pin 35).
PECL Prescaler Output. Differential output of the dual-modulus prescaler. Used with PSOUT- (pin 38).
Requires PECL-compatible termination.
PECL Prescaler Output. Differential output of the dual-modulus prescaler. Used with PSOUT+ (pin 37).
Requires PECL-compatible termination.
LO Tank Oscillator Input. Connect to an external LC tank with varactor tuning.
LO Internal Regulator. Bypass with a 100pF ceramic chip capacitor to GND.
LO Tank Oscillator Input. Connect to an external LC tank with varactor tuning.
Feedback Output. Control of external charge-pump transistor.
Voltage Drive Output. Control of external charge-pump transistor.
Exposed Paddle. Connect EP to GND.
t
SUM
t
50%
50%
HM
50%
Direct-Conversion Tuner IC for
Digital DBS Applications
FUNCTION
Pin Description (continued)
7