MAX19995A：Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch

Lowest Noise, Highest Linearity 1700MHz to 2200MHz Dual, SiGe Mixer for DCS/PCS, CDMA, WCDMA, and LTE Base Stations, Featuring Superior IIP3, NF, and 2LO-2RF Performance

The MAX19995A dual-channel downconverter is designed to provide 8.7dB of conversion gain, +24.8dBm input IP3, +13.5dBm 1dB input compression point, and a noise figure of 9.2dB for 1700MHz to 2200MHz diversity receiver applications. With an optimized LO frequency range of 1750MHz to 2700MHz, this mixer is ideal for high-side LO injection architectures. Low-side LO injection is supported by the MAX19995, which is pin-pin and functionally compatible with the MAX19995A. In addition to offering excellent linearity and noise performance, the MAX19995A also yields a high level of component integration. This device includes two double-balanced passive mixer cores, two LO buffers, a dual-input LO selectable switch, and a pair of differential IF output amplifiers. Integrated on-chip baluns allow for single-ended RF and LO inputs. The MAX19995A requires a nominal LO drive of 0dBm and a typical supply current of 350mA at VCC = 5.0V, or 242mA at VCC = 3.3V. The MAX19995/MAX19995A are pin compatible with the MAX19985/MAX19985A series of 700MHz to 1000MHz mixers and pin similar to the MAX19997A/MAX19999 series of 1800MHz to 4000MHz mixers, making this entire family of downconverters ideal for applications where a common PCB layout is used across multiple frequency bands. The MAX19995A is available in a 6mm x 6mm, 36-pin thin QFN package with an exposed pad. Electrical performance is guaranteed over the extended temperature range (TC = -40°C to +85°C).

Key Features

1700MHz to 2200MHz RF Frequency Range
1750MHz to 2700MHz LO Frequency Range
50MHz to 500MHz IF Frequency Range
8.7dB Typical Conversion Gain
9.2dB Typical Noise Figure
+24.8dBm Typical Input IP3
+13.5dBm Typical Input 1dB Compression Point
64dBc Typical 2LO-2RF Spurious Rejection at PRF = -10dBm
Dual Channels Ideal for Diversity Receiver Applications
48dB Typical Channel-to-Channel Isolation
Low -3dBm to +3dBm LO Drive
Integrated LO Buffer
Internal RF and LO Baluns for Single-Ended Inputs
Built-In SPDT LO Switch with 48dB LO-to-LO Isolation and 50ns Switching Time
Pin Compatible with the MAX19985/MAX19985A/MAX19995 Series of 700MHz to 2200MHz Mixers
Pin Similar to the MAX19997A/MAX19999 Series of 1800MHz to 4000MHz Mixers
Single 5.0V or 3.3V Supply
External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode

MAX19995A: Typical Application Circuit

Applications/Uses

cdma2000® Base Stations
DCS1800/PCS1900 and GSM/EDGE Base Stations
Fixed Broadband Wireless Access
LTE/WiMAX™ Base Stations
Military Systems
Private Mobile Radios
TD-SCDMA Base Stations
UMTS/WCDMA Base Stations
Wireless Local Loop

DataSheet

title	Download file
MAX19995A Data Sheet	MAX19995A.pdf

Parametrics

Part Number	Channels	RF Freq. (MHz)	RF Freq. (MHz)	LO Freq. (MHz)	LO Freq. (MHz)	IF Freq. (MHz)	IF Freq. (MHz)	Gain (dB)	Input IP3 (dBm)	Noise Figure (dB)	2RF-2LO/ 2LO-2RF (dBc)	V_CC (V)	3.3V Supply Current (mA)	5V Supply Current (mA)	Footprint (mm x mm)	Package/Pins
Part Number	Channels	min	max	min	max	min	max	Gain (dB)	Input IP3 (dBm)	Noise Figure (dB)	2RF-2LO/ 2LO-2RF (dBc)	V_CC (V)	3.3V Supply Current (mA)	5V Supply Current (mA)	Footprint (mm x mm)	Package/Pins
MAX19995A	2	1700	2200	1750	2700	50	500	8.7	24.8	9.2	64	3.0 to 5.25	242	350	6.0 x 6.0	TQFN/36

Quality and Environmental Data

MAX19995A.pdf

Ordering Information

Part Number	Status	Package	Temp	RoHS
MAX19995AETX+	Active	TQFN,;36 pin;37.2 mm²	-40°C to +85°C	Lead Free
MAX19995AETX+T	Active	TQFN,;36 pin;37.2 mm²	-40°C to +85°C	Lead Free
MAX19995AEVKIT	No Longer Available	KIT;	-40°C to +85°C	See data sheet
MAX19995AEVKIT#	No Longer Available	EVKIT;	-40°C to +85°C	See data sheet