Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - analogue switches TQFN 36

General Description

The MAX4758/MAX4759 quad double-pole/double-

throw (DPDT) analog switches operate from a single

+1.8V to +5.5V supply. These switches feature low

0.5Ω on-resistance for audio switching and a low 25pF

capacitance for data switching.

The MAX4758 has eight 0.5Ω on-resistance switches to

switch audio signals. The MAX4759 has four 0.5Ω on-

resistance switches to route audio signals and four

25pF capacitance switches to route data signals. The

MAX4758/MAX4759 have four logic inputs to control the

switches in pairs.

The MAX4758/MAX4759 are available in a small 36-pin

(6mm x 6mm) thin QFN and 36-bump (3mm x 3mm)

chip-scale package (UCSP™).

Applications

Features

♦ Data and Audio Signal Routing

♦ Low On-Resistance (0.5Ω) Audio Switches

♦ 0.2Ω On-Resistance Flatness

♦ 0.1Ω Channel-to-Channel Matching

♦ Low-Capacitance (25pF) Data Switches (MAX4759)

♦ 0.2ns Skew (MAX4759)

♦ 0.03% THD

♦ +1.8V to +5.5V Supply Range

♦ Rail-to-Rail Signal Handling

♦ Tiny 36-Bump UCSP (3mm x 3mm)

♦ 36-Pin Thin QFN (6mm x 6mm)

MAX4758/MAX4759

Quad DPDT Audio/Data Switches in UCSP/QFN

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3043; Rev 2; 2/05

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART

TEMP RANGE

PIN-PACKAGE

MAX4758EBX-T

-40°C to +85°C

36 U C S P - 36

MAX4758ETX

-40°C to +85°C

36 Thi n QFN ( 6m m x 6m m )

MAX4759EBX-T

-40°C to +85°C

36 U C S P - 36

MAX4759ETX

-40°C to +85°C

36 Thi n QFN ( 6m m x 6m m )

UCSP is a trademark of Maxim Integrated Products, Inc.

Functional Diagrams

MAX4758

INA

NO1

NC1

NO2

NC2

AUDIO 1

COM1

COM2

AUDIO 2

INB

NO3

NC3

NO4

NC4

AUDIO 3

COM3

COM4

AUDIO 4

INC

NO5

NC5

NO6

NC6

AUDIO 5

COM5

COM6

AUDIO 6

IND

NO7

NC7

NO8

NC8

AUDIO 7

COM7

COM8

AUDIO 8

MAX4759

INA

NO1

NC1

NO2

NC2

AUDIO 1

COM1

COM2

AUDIO 2

INB

NO3

NC3

NO4

NC4

AUDIO 3

COM3

COM4

AUDIO 4

INC

NO5

NC5

NO6

NC6

DATA 1

COM5

COM6

DATA 1

IND

NO7

NC7

NO8

NC8

DATA 3

COM7

COM8

DATA 4

Pin Configurations/Truth Table appear at end of data sheet.

Speaker-Headset

Switching

Audio-Signal Routing

Cellular Phones

PDAs/Hand-Held

Devices

Notebook Computers

USB Signal Switching

Summary of content (15 pages)

PAGE 1
9-3043; Rev 2; 2/05 Quad DPDT Audio/Data Switches in UCSP/QFN The MAX4758/MAX4759 quad double-pole/doublethrow (DPDT) analog switches operate from a single +1.8V to +5.5V supply. These switches feature low 0.5Ω on-resistance for audio switching and a low 25pF capacitance for data switching. The MAX4758 has eight 0.5Ω on-resistance switches to switch audio signals. The MAX4759 has four 0.5Ω onresistance switches to route audio signals and four 25pF capacitance switches to route data signals.
PAGE 2
MAX4758/MAX4759 Quad DPDT Audio/Data Switches in UCSP/QFN ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) V+, IN_......................................................................-0.3V to +6V COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V) Continuous Current NO_, NC_, COM_ (MAX4758) ....................................±300mA NO1–NO4, NC1–NC4, COM1–COM4 (MAX4759) .....±300mA NO5–NO8, NC5–NC8 COM5–COM8 (MAX4759) ......
PAGE 3
Quad DPDT Audio/Data Switches in UCSP/QFN (V+ = +2.7V to +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS Turn-Off Time tOFF V+ = 2.7V, VNO_ or VNC_ = 1.5V; RL = 50Ω; CL = 35pF, Figure 2 Break-Before-Make (Note 7) tBBM V+ = 2.7V, VNO_ or VNC_ = 1.
PAGE 4
ELECTRICAL CHARACTERISTICS (continued) (V+ = +2.7V to +5.25V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3V, TA = +25°C.) (Notes 2, 3) PARAMETER SYMBOL CONDITIONS TA MIN TMIN to TMAX 1.8 TYP MAX UNITS 5.5 V POWER SUPPLY Power-Supply Range V+ Positive Supply Current I+ +25°C V+ = 4.3V, VIN_ = 0V or V+ 0.01 TMIN to TMAX 1.0 µA Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
PAGE 5
Quad DPDT Audio/Data Switches in UCSP/QFN V+ = 1.8V 8 5 MAX4759 (N_5–N_8) V+ = 3V 4 MAX4759 (N_5–N_8) V+ = 5V 4 TA = +85°C 6 V+ = 2V 5 V+ = 2.3V TA = +25°C 3 RON (Ω) RON (Ω) 7 RON (Ω) 5 MAX4758 toc05 MAX4759 (N_5–N_8) 9 MAX4758 toc04 10 ON-RESISTANCE vs. VCOM AND TEMPERATURE MAX4758 toc06 ON-RESISTANCE vs. VCOM AND TEMPERATURE ON-RESISTANCE vs. VCOM 2 TA = +85°C 3 TA = +25°C 2 4 V+ = 2.7V V+ = 5V 1 V+ = 3V 1 0 0 0.5 1.0 1.5 2.0 VCOM (V) NO/NC OFF-LEAKAGE CURRENT vs.
PAGE 6
Typical Operating Characteristics (continued) (V+ = 3V, TA = +25°C, unless otherwise noted.) LOGIC THRESHOLD vs. SUPPLY VOLTAGE 1.6 LOGIC THRESHOLD (V) V+ = 5V 10 V+ = 3V 0.1 80 MAX4758 toc13 MAX4758 toc12 2.0 MAX4758, MAX4759 (N_1–N_4) 70 60 tON/tOFF (ns) SUPPLY CURRENT (nA) 1000 TURN-ON/OFF TIMES vs. SUPPLY VOLTAGE 1.2 VIH VIL 0.8 MAX4758 toc14 SUPPLY CURRENT vs. TEMPERATURE tON 50 40 tOFF 30 20 0.4 10 0 -15 10 35 85 60 0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1.5 4.0 4.
PAGE 7
Quad DPDT Audio/Data Switches in UCSP/QFN SKEW vs. TEMPERATURE 200 ON-LOSS (dB) 300 0 -20 400 SKEW (ps) 400 SKEW (ps) MAX4759 (N_5–N_8) INPUT RISE/FALL TIME = 15ns CL = 50pF, FIGURE 3 V+ = 4.2V 500 FREQUENCY RESPONSE 20 MAX4758 toc19 MAX4758 toc18 MAX4759 (N_5–N_8) INPUT RISE/FALL TIME = 15ns CL = 50pF, FIGURE 3 500 600 MAX4758 toc20 SKEW vs. SUPPLY VOLTAGE 600 300 200 ON-LOSS -40 CROSSTALK -60 -80 OFF-ISOLATION -100 100 100 0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.
PAGE 8
Quad DPDT Audio/Data Switches in UCSP/QFN MAX4758/MAX4759 Pin Description PIN MAX4758 THIN QFN MAX4759 FUNCTION UCSP UCSP 1 A1 1 A1 NC1 2 B2 2 B2 COM2 3 A2 3 A2 NC2 Analog Switch 2, Normally Closed Terminal 2 4 A3 4 A3 INA Logic Control Digital Input for Switches 1 and 2 5 C3, D4 5 C3, D4 V+ Positive Supply Voltage Analog Switch 1, Normally Closed Terminal 1 Analog Switch 2, Common Terminal 2 6 A4 6 A4 INB Logic Control Digital Input for Switches 3 and 4 7 A5 7 A5
PAGE 9
Quad DPDT Audio/Data Switches in UCSP/QFN The MAX4758/MAX4759 quad DPDT analog switches operate from a single +1.8V to +5.5V supply. These devices are fully specified for +3V applications. The MAX4758/MAX4759 (switches 1–4) have a guaranteed 0.5Ω on-resistance, making them ideal for audio switching applications. The MAX4759 also includes four single-pole/double-throw (SPDT) switches (switches 5–8) that have a guaranteed 0.2Ω on-resistance, a low 25pF capacitance, 0.
PAGE 10
Quad DPDT Audio/Data Switches in UCSP/QFN MAX4758/MAX4759 Timing Circuits/Timing Diagrams MAX4758 MAX4759 V+ VN_ LOGIC INPUT V+ COM_ NO_ OR NC_ 50% 0V VOUT RL t OFF CL IN_ VOUT GND LOGIC INPUT SWITCH OUTPUT ( 0.9 x V0UT 0.9 x VOUT 0V t ON CL INCLUDES FIXTURE AND STRAY CAPACITANCE. RL RL + RON VOUT = VN_ t r < 5ns t f < 5ns 50% V+ IN DEPENDS ON SWITCH CONFIGURATION; INPUT POLARITY DETERMINED BY SENSE OF SWITCH. ) Figure 2.
PAGE 11
Quad DPDT Audio/Data Switches in UCSP/QFN tri 90% 50% A TxD+ B 10% INPUT A tskew_i CL Rs INPUT A- 90% 50% 10% tfi tro A- TxD- B- 10% OUTPUT B 90% 50% tskew_o CL Rs OUTPUT B- Rs = 39Ω CL = 50pF 90% 50% 10% tfo |tro - tri| DELAY DUE TO SWITCH FOR RISING INPUT AND RISING OUTPUT SIGNALS. |tfo - tfi| DELAY DUE TO SWITCH FOR FALLING INPUT AND FALLING OUTPUT SIGNALS. |tskew_o| CHANGE IN SKEW THROUGH THE SWITCH FOR OUTPUT SIGNALS.
PAGE 12
Quad DPDT Audio/Data Switches in UCSP/QFN MAX4758/MAX4759 Timing Circuits/Timing Diagrams (continued) +5V 10nF OFF-ISOLATION = 20log ✕ VOUT VIN ON-LOSS = 20log ✕ VOUT VIN NETWORK ANALYZER 0V OR V+ IN_ NC1 V+ MAX4758 MAX4759 50Ω MEAS VOUT NO1* 50Ω 50Ω VIN COM1 GND V CROSSTALK = 20log ✕ OUT VIN REF 50Ω 50Ω *FOR CROSSTALK THIS PIN IS NO2. NC2 AND COM2 ARE OPEN. MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
PAGE 13
Quad DPDT Audio/Data Switches in UCSP/QFN TOP VIEW MAX4758/MAX4759 COM5 28 COM4 N.C. COM3 29 COM2 NO6 COM1 30 NC4 NO5 NC3 31 INB N.C. INA 32 NC2 NO1 NC1 33 6 NO2 5 34 4 N.C.
PAGE 14
Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) QFN THIN.
PAGE 15
Quad DPDT Audio/Data Switches in UCSP/QFN 36L,UCSP.EPS PACKAGE OUTLINE, 6x6 UCSP 21-0082 K 1 1 Revision History Pages changed at Rev 2: 1, 3, 4, 9, 15 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.