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ANALOG DEVICES ADM3307E, ADM3310E, ADM3311E, ADM3312E, ADM3315E Service Manual

15 kV ESD Protected, 2.7 V to 3.6 V
a
Serial Port Transceivers with Green Idle
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
FEATURES Green Idle Power-Saving Mode Single 2.7 V to 3.6 V Power Supply Operates with 3 V Logic
0.1 F to 1 F Charge Pump Capacitors Low EMI Low Power Shutdown: 20 nA Full RS-232 Compliance 460 kbits/s Data Rate 1 Receiver Active in Shutdown (2 for ADM3310E) ESD >15 kV IEC 1000-4-2 on RS-232 I/Os (ADM33xxE) ESD >15 kV IEC 1000-4-2 on CMOS and RS-232 I/Os (ADM3307E)
APPLICATIONS Mobile Phone Handsets/Data Cables Laptop and Notebook Computers Printers Peripherals Modems PDAs/Hand-Held Devices/Palmtop Computers

GENERAL DESCRIPTION

The ADM33xxE line of driver/receiver products is designed to fully meet the EIA-232 standard while operating with a single
2.7 V to 3.6 V power supply. The devices feature an on-board charge pump dc-to-dc converter, eliminating the need for dual power supplies. This dc-to-dc converter contains a voltage tripler and a voltage inverter that internally generates positive and negative supplies from the input 3 V power supply. The dc­to-dc converter operates in Green Idle mode, whereby the charge pump oscillator is gated ON and OFF to maintain the output voltage at ±7.25 V under varying load conditions. This minimizes the power consumption and makes these products ideal for battery-powered portable devices.
The ADM33xxE devices are suitable for operation in harsh elec­trical environments and contain ESD protection up to ±15 kV on their RS-232 lines (ADM3310E, ADM3311E, ADM3312E, and ADM3315E). The ADM3307E contains ESD protection up to ± 15 kV on all I/O lines (CMOS, RS-232, EN, and SD).
A shutdown facility that reduces the power consumption to 66 nW is also provided. While in shutdown, one receiver remains active (two receivers active with ADM3310E), thereby allowing monitoring of peripheral devices. This feature allows the device to be shut down until a peripheral device begins communication.
*Protected by U.S.Patent No. 5,606,491.
™
*
The active receiver can alert the processor, which can then take the ADM33xxE device out of the shutdown mode.
The ADM3307E contains five drivers and three receivers and is intended for mobile phone data lump cables and portable com­puting applications.
The ADM3311E contains three drivers and five receivers and is intended for serial port applications on notebook/laptop computers.
The ADM3310E is a low current version of the ADM3311E. This device also allows two receivers to be active in shutdown mode.
The ADM3312E contains three drivers and three receivers and is intended for serial port applications, PDAs, mobile phone data lump cables, and other hand-held devices.
The ADM3315E is a low current version of the ADM3312E, with a 22 kW receiver input resistance that reduces the drive requirements of the DTE. Its main applications are PDAs, palmtop computers, and mobile phone data lump cables.
The ADM33xxE devices are fabricated using CMOS technology for minimal power consumption. All parts feature a high level of overvoltage protection and latch-up immunity.
All ADM33xxE devices are available in a 32-lead 5 mm ¥ 5 mm LFCSP package and in a TSSOP package (ADM3307E, ADM3310E, and ADM3311E in a 28-lead TSSOP; ADM3312E and ADM3315E in a 24-lead TSSOP). The ADM3311E also comes in a 28-lead SSOP package.
The ADM33xxE devices are ruggedized RS-232 line drivers/ receivers that operate from a single supply of 2.7 V to 3.6 V. Step-up voltage converters coupled with level shifting transmitters and receivers allow RS-232 levels to be developed while operating from a single supply. Features include low power consumption, Green Idle operation, high transmission rates, and compatibility with the EU directive on electromagnetic compatibility. This EM compatibility directive includes protection against radiated and conducted interference, including high levels of electrostatic discharge.
All RS-232 (and CMOS, SD, and EN for ADM3307E) inputs and outputs are protected against electrostatic discharges (up to ± 15 kV). This ensures compliance with IEC 1000-4-2 requirements.
These devices are ideally suited for operation in electrically harsh environments or where RS-232 cables are frequently being plugged/unplugged. They are also immune to high RF field strengths without special shielding precautions.
Emissions are also controlled to within very strict limits. CMOS technology is used to keep the power dissipation to an absolute minimum, allowing maximum battery life in portable applications.
REV. G
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2004 Analog Devices, Inc. All rights reserved.
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E

FUNCTIONAL BLOCK DIAGRAMS

V
CC
10F
TANTALUM
ENABLE
INPUT
C1
C2
0.1F
0.1F
0.1F
CERAMIC
SHUTDOWN
OUTPUTS
INPUT
CMOS
CMOS
INPUTS
0.1F
1
C4
V
V
CC
C2
VOLTAGE
TRIPLER/
INVERTER
3V TO
C1
EN
SD
T1
IN
T2
IN
T3
IN
T4
IN
T5
IN
R1
OUT
R2
OUT
R3
OUT
9V
T1
T2
T3
T4
T5
C2+
C3+
C1+
C3–
V–
GND
R1
R2
R3
ADM3307E
NOTES
1
INTERNAL 400k PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
C1
C4
0.1F
V
C3
0.1F
C5
0.1F
T1
OUT
T2
OUT
EIA/TIA-232
T3
OUT
OUTPUTS
T4
OUT
T5
OUT
R1
OUT
EIA/TIA-232
R2
OUT
R3
OUT
INPUTS
2
10F
TANTALUM
CC
0.1F
CERAMIC
ENABLE
INPUT
CMOS
INPUTS
CMOS
OUTPUTS
C2
0.1F
T1
IN
T2
IN
1
T3
IN
R1
OUT
R2
OUT
R3
OUT
R4
OUT
R5
OUT
0.1F
V
C2+
VOLTAGE
V
CC
TRIPLER/ INVERTER
C2
3V TO
9V
EN
C1+
T1
T2
T3
ADM3310E/
C3+
GND
C3–
V–
C3
0.1F
C5
0.1F
C1–
T1
OUT
T2
OUT
T3
OUT
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
SHUTDOWN INPUT
EIA/TIA-232
OUTPUTS
EIA/TIA-232
INPUTS
2
SD
R1
R2
R3
R4
R5
ADM3311E
NOTES
1
INTERNAL 400k PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5k PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
V
10F
TANTALUM
C1
V
C2+
V
CC
C2
EN
C1+
0.1F
VOLTAGE TRIPLER/ INVERTER
3V TO
9V
T1
T2
T3
R1
R2
R3
C3+
GND
C3–
C1–
SD
C3
0.1F
C5
T1
OUT
T2
OUT
T3
OUT
R1
R2
R3
0.1F
SHUTDOWN INPUT
IN
IN
IN
EIA/TIA-232
OUTPUTS
EIA/TIA-232
INPUTS
2
V–
C4
0.1F
CC
0.1F
CERAMIC
ENABLE
INPUT
CMOS
INPUTS
CMOS
OUTPUTS
C2
0.1F
T1
IN
T2
IN
1
T3
IN
R1
OUT
R2
OUT
R3
OUT
ADM3312E/
ADM3315E
NOTES
1
INTERNAL 400k PULL-UP RESISTOR ON EACH CMOS INPUT.
2
INTERNAL 5k (22kFOR ADM3315E) PULL-DOWN RESISTOR
ON EACH RS-232 INPUT.
–2–
REV. G
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E

SPECIFICATIONS

(VCC = 2.7 V to 3.6 V, C1–C5 = 0.1 F. All specifications T
MIN
to T
, unless otherwise noted.)
MAX
Parameter Min Typ Max Unit Test Conditions/Comments
Operating Voltage Range 2.7 3.3 3.6 V
Power Supply Current
V
CC
ADM3307E 0.75 1.5 mA V
0.75 4.5 mA V
ADM3311E, ADM3312E 0.45 1 mA No Load; V
= 3.0 V to 3.6 V; No Load
CC
= 2.7 V to 3.6 V; No Load
CC
= 3.0 V to 3.6 V; TA = 0∞C
CC
to 85∞C
0.45 4.5 mA No Load; V
= 2.7 V to 3.6 V; TA = – 40∞C
CC
to +85∞C ADM3310E, ADM3315E 0.35 0.85 mA V ADM3310E, ADM3311E, 35 mA R
= 2.7 V to 3.6 V; No Load
CC
= 3 kW to GND on all T
L
OUTS
ADM3312E, ADM3315E
Shutdown Supply Current 0.02 1 mA
Input Pull-Up Current 10 25 mAT
= GND
IN
Input Leakage Current, SD, EN 0.02 ± 1 mA Input Logic Threshold Low, V
Input Logic Threshold High, V CMOS Output Voltage Low, V CMOS Output Voltage High, V
INL
INH
OL
OH
2.0 V TIN, EN, SHDN
V
– 0.6 V I
CC
0.8 V TIN, EN, SHDN
0.4 V T
0.4 V I
, EN, SHDN; VCC = 2.7 V
IN
= 1.6 mA
OUT
= –200 mA
OUT
CMOS Output Leakage Current
ADM3307E 0.04 ± 1 mA EN = V
, 0 V < R
CC
ADM3310E, ADM3311E 0.05 ±5 mA EN = VCC, 0 V < R
OUT
OUT
< V < V
CC
CC
ADM3312E, ADM3315E
Charge Pump Output Voltage, V+ +7.25 V No Load
ADM3307E, ADM3311E, ADM3312E
Charge Pump Output Voltage, V––7.25 V No Load
ADM3307E, ADM3311E, ADM3312E
Charge Pump Output Voltage, V+ +6.5 V No Load
ADM3310E, ADM3315E
Charge Pump Output Voltage, V––6.5 V No Load
ADM3310E, ADM3315E
EIA-232 Input Voltage Range –25 +25 V EIA-232 Input Threshold Low 0.4 1.3 V EIA-232 Input Threshold High 2.0 2.4 V EIA-232 Input Hysteresis 0.14 V EIA-232 Input Resistance
ADM3307E, ADM3310E, ADM3311E, 3 5 7 kW
ADM3312E
ADM3315E 14 22 31 kW
REV. G
–3–
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E
SPECIFICATIONS
(continued)
Parameter Min Typ Max Unit Test Conditions/Comments
Output Voltage Swing
ADM3310E, ADM3315E ± 5.0 ± 5.5 V All Transmitter Outputs Loaded with
3kW to Ground
ADM3307E, ADM3311E, ADM3312 ± 5.0 ± 6.4 V (V
± 5.5 V (V
= 3.0 V)
CC
= 2.7 V)
CC
All Transmitter Outputs Loaded with 3kW to Ground
Transmitter Output Resistance 300 W V
RS-232
Output Short Circuit Current ± 15 ± 60 mA
= 0 V, V
CC
OUT
= ± 2 V
Maximum Data Rate ADM3307E 250 720 kbps R
460 920 kbps R
ADM3310E, ADM3311E, ADM3312E 250 460 kbps R
ADM3315E V
Receiver Propagation Delay, T
PHL
, T
PLH
0.3 msC
0.17 1 msC Receiver Output Enable Time, t Receiver Output Disable Time, t
ER
DR
Transmitter Propagation Delay, T
PHL
, T
PLH
100 ns 300 ns 500 ns RL = 3 kW, CL = 1000 pF
= 3 kW to 7 kW, CL = 50 pF to 1000 pF,
L
V
= 2.7 V
CC
= 3 kW to 7 kW, CL = 50 pF to 1000 pF,
L
= 3.0 V
V
CC
= 3 kW to 7 kW, CL = 50 pF to 1000 pF,
L
= 3.0 V
CC
= 150 pF
L
= 150 pF; ADM3307E Only
L
Transition Region Slew Rate 3 18 V/msRL = 3 kW, CL = 50 pF to 1000 pF
ESD PROTECTION (I/O PINS) ±15 kV Human Body Model
NOTES
1
Measured at +3 V to –3 V or –3 V to +3 V.
2
Includes CMOS I/O, SD, and EN for ADM3307E.
Specification subject to change without notice.
± 15 kV IEC 1000-4-2 Air Discharge ± 8kVIEC 1000-4-2 Contact Discharge
2
1

ABSOLUTE MAXIMUM RATINGS*

(TA = 25∞C, unless otherwise noted)
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +4 V
V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . (V
– 0.3 V) to +9 V
CC
V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+0.3 V to –9 V
Input Voltages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +6 V
T
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 30 V
R
IN
Output Voltages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 15 V
T
OUT
. . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (VCC + 0.3 V)
R
OUT
Short Circuit Duration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous
T
OUT
Thermal Impedance, q
JA
CP-32 LFCSP . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.5∞C/W
RU-28 TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.0∞C/W
RU-24 TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . 68.0∞C/W
RS-28 SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76.0∞C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . . . –40∞C to +85∞C
Storage Temperature Range . . . . . . . . . . –65∞C to +150∞C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300∞C
ESD Rating (IEC 1000-4-2 Air) (RS-232 I/Os) . . . . . . .± 15 kV
ESD Rating (IEC 1000-4-2 Contact) (RS-232 I/Os) . . . . ± 8 kV
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
–4–
REV. G
ADM3307E/ADM3310E/ADM3311E/ADM3312E/ADM3315E

PRODUCT SELECTION GUIDE

No. Rx I
Supply Active 15 kV I
CC
CC
Shutdown
Generic Voltage Tx Rx in SD Speed ESD Max Max* Additional Features
ADM3307E 2.7 V to 3.6 V 5 3 1 1 Mbps RS-232 1.5 mA 1 mA ± 15 kV ESD Protection
CMOS CMOS on RS-232 and EN and SD CMOS I/Os including
SD and EN Pins.
ADM3310E 2.7 V to 3.6 V 3 5 2 460 kbps RS-232 0.85 mA 1 mA2 Rxs Active in Shutdown.
Green Idle Mode Level 6 V. Low power
ADM3311E. ADM3311E 2.7 V to 3.6 V 3 5 1 460 kbps RS-232 1 mA 1 mA ADM3312E 2.7 V to 3.6 V 3 3 1 460 kbps RS-232 1 mA 1 mA ADM3315E 2.7 V to 3.6 V 3 3 1 460 kbps RS-232 0.85 mA 1 mA 22 kW Rx I/P
Resistance. Green Idle
Mode Level 6 V. Low power
ADM3312E.
*ICC Shutdown is 20 nA typically.

ORDERING GUIDE

Model Temperature Range Package Description Package Option
ADM3307EARU –40∞C to +85∞C28-Lead Thin Shrink Small Outline (TSSOP) RU-28 ADM3307EARU-REEL –40∞C to +85∞CTape and Reel RU-28 ADM3307EARU-REEL7 –40∞C to +85∞CTape and Reel RU-28 ADM3307EACP –40∞C to +85∞C32-Lead ADM3307EACP-REEL –40∞C to +85∞CTape and Reel RU-28 ADM3307EACP-REEL7 –40∞C to +85∞CTape and Reel RU-28 ADM3310EARU –40∞C to +85∞C28-Lead Thin Shrink Small Outline (TSSOP) RU-28 ADM3310EARU-REEL –40∞C to +85∞CTape and Reel RU-28 ADM3310EARU-REEL7 –40∞C to +85∞CTape and Reel RU-28 ADM3310EACP –40∞C to +85∞C32-Lead ADM3310EACP-REEL –40∞C to +85∞CTape and Reel CP-32-2 ADM3310EACP-REEL7 –40∞C to +85∞CTape and Reel CP-32-2 ADM3311EARS –40∞C to +85∞C28-Lead Shrink Small Outline (SSOP) RS-28 ADM3311EARS-REEL –40∞C to +85∞CTape and Reel RS-28 ADM3311EARS-REEL7 –40∞C to +85∞CTape and Reel RS-28 ADM3311EARZ* –40∞C to +85∞C28-Lead Shrink Small Outline (SSOP) RS-28 ADM3311EARZ-REEL* –40∞C to +85∞CTape and Reel RS-28 ADM3311EARZ-REEL7* –40∞C to +85∞CTape and Reel RS-28 ADM3311EARU –40∞C to +85∞C28-Lead Thin Shrink Small Outline (TSSOP) RU-28 ADM3311EARU-REEL –40∞C to +85∞CTape and Reel RU-28 ADM3311EARU-REEL7 –40∞C to +85∞CTape and Reel RU-28 ADM3311EACP –40∞C to +85∞C32-Lead ADM3312EARU –40∞C to +85∞C24-Lead Thin Shrink Small Outline (TSSOP) RU-24 ADM3312EARU-REEL –40∞C to +85∞CTape and Reel RU-24 ADM3312EARU-REEL7 –40∞C to +85∞CTape and Reel RU-24 ADM3312EACP –40∞C to +85∞C32-Lead ADM3312EACP-REEL –40∞C to +85∞CTape and Reel CP-32-2 ADM3312EACP-REEL7 –40∞C to +85∞CTape and Reel CP-32-2 ADM3315EARU –40∞C to +85∞C24-Lead Thin Shrink Small Outline (TSSOP) RU-24 ADM3315EARU-REEL –40∞C to +85∞CTape and Reel RU-24 ADM3315EARU-REEL7 –40∞C to +85∞CTape and Reel RU-24 ADM3315EARUZ* –40∞C to +85∞C24-Lead Thin Shrink Small Outline (TSSOP) RU-24 ADM3315EARUZ-REEL* –40∞C to +85∞CTape and Reel RU-24 ADM3315EARUZ-REEL7* –40∞C to +85∞CTape and Reel RU-24 ADM3315EACP –40∞C to +85∞C32-Lead ADM3315EACP-REEL –40∞C to +85∞CTape and Reel CP-32-2 ADM3315EACP-REEL7 –40∞C to +85∞CTape and Reel CP-32-2
Z = Pb-free part.
*
5 mm ¥ 5 mm
5 mm ¥ 5 mm
5 mm ¥ 5 mm
5 mm ¥ 5 mm
5 mm ¥ 5 mm
Lead Frame
Lead Frame
Lead Frame
Lead Frame
Lead Frame
Chip Scale
Chip Scale
Chip Scale
Chip Scale
Chip Scale
Package (LFCSP) CP-32-2
Package (LFCSP) CP-32-2
Package (LFCSP) CP-32-2
Package (LFCSP) CP-32-2
Package (LFCSP) CP-32-2
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the ADM33xxE feature proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
REV. G
–5–
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