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PDF CM2400-02 Data sheet ( Hoja de datos )
| Número de pieza | CM2400-02 | |
| Descripción | (CM2400-02/-03/-04) Universal Serial Bus Transceiver | |
| Fabricantes | CMD | |
| Logotipo |  |
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PRELIMINARY
CM2400-02/03/04
Universal Serial Bus Transceiver with Level Translator
Features
• Complies with USB Specification Rev 1.1 & 2.0
• Supports full speed (12Mbit/sec.) and low speed
(1.5Mbits/sec.) modes
• Integrated 5V to 3.3V regulator
• Used as a USB device transceiver or
host transceiver
• VBUS disconnection indication through VP and VM
outputs
• Two single-ended receivers with hysteresis
• USB Detection of VBUS via level translator
• Stable RCV output during SE0 condition
• Low power operation from VCC
• Supports 1.65V to 3.6V I/O voltage levels
• Full industrial operating range -40 to 85 °C
• Available in small HBCC-16 and
TSSOP-16 packages
Applications
• Wireless handsets
• Digital still cameras
• PDAs (Personal Digital Assistants)
• IAs (Information Appliances)
Product Description
The CM2400-02/03/04 Universal Serial Bus (USB)
transceiver is fully compliant with the USB specification
Rev 1.1 and 2.0. It supports a speed of 12Mbits/s (Full
Speed Mode).
An internal level shifter allows interface to Application
Specific ICs (ASICs) and Programmable Logic Devices
(PLD's) running at core voltages of 1.65V to 3.6V.
The CM2400-02/03/04 features an internal 5V to 3.3V
regulator which is used to power the USB transceiver
via the USB supply VBUS.
The CM2400-04 features a Mode Input pin (MODE)
which allows the device to operate in either single or
differential input mode.
This device is ideal for portable electronic devices such
as mobile phones, digital still cameras, PDAs (Personal
Digital Assistants) and IAs (Information Appliances).
The CM2400-02/03/04 is packaged in a small form-fac-
tor 16-lead HBCC or TSSOP package to conserve
board space.
Simplified Block Schematic
VCC
ENUM
OE
VMO/FSEO
VPO/VO
SPND
RCV
SPEED
MODE*
Voltage
Regulator
VBUS
VREG
VPU
D+
D-
* MODE pin available on
CM2400-04 only.
VP
VM
GND
© 2004 California Micro Devices Corp. All rights reserved.
08/24/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com
1
1 page  
PRELIMINARY
CM2400-02/03/04
Specifications (cont’d)
ELECTRICAL OPERATING CHARACTERISTICS (CONT’D)
Digital Pins (VBUS = 4.0V to 5.5V; VCC = 2.5V ± 0.2V)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIL Logic LOW input voltage
0.7 V
VIH Logic HIGH input voltage
1.7 V
VOL Logic LOW output voltage IOL = 100µA
IOL = 2mA
0.15 V
0.40 V
VOH Logic HIGH output voltage IOH = 100µA
IOH = 2mA
2.15
1.90
V
V
Digital Pins (VBUS = 4.0V to 5.5V; VCC = 1.65V to 3.6V)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIL Logic LOW input voltage
0.3 ∗ VCC
V
VIH Logic HIGH input voltage
0.6 ∗ VCC
V
VOL Logic LOW output voltage IOL = 100µA
IOL = 2mA
0.15 V
0.40 V
VOH Logic HIGH output voltage IOH = 100µA
IOH = 2mA
VCC - 0.15
VCC - 0.40
V
V
Analog I/O Pins (VBUS = 4.0V to 5.5V; VCC = 1.65V to 3.6V)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VDI Differential receiver input
sensitivity
| VI(D+) - VI(D-) |
0.2
V
VCM Differential receiver
common mode voltage
0.8 2.5 V
VIL Single-ended receiver
logic LOW input voltage
0.8 V
VIH Single-ended receiver
logic HIGH input voltage
2.0 V
VHYS
Single-ended receiver
Hysteresis voltage
0.4 0.7 V
VOL Logic LOW output voltage RL = 1.5KΩ tied to +3.6V
0.3 V
VOH Logic HIGH output voltage RL = 15KΩ tied to GND
2.8
3.6 V
ILZ OFF-state leakage current
+1 µA
CIN Transceiver Capacitance
Pin to GND
20 pF
RSW
Internal switch resistance at
VPU
50 Ω
ZDRV Driver output impedance
Measured with steady-state drive;
28
39
44
(includes 33 ohm 1% resis- See Note 6
tor)
Ω
Note 6: Rev 2.0 states ZDRV must be between 28Ω and 44Ω, when the driver is not high speed capable.
© 2004 California Micro Devices Corp. All rights reserved.
08/24/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com
5
5 Page 
PRELIMINARY
CM2400-02/03/04
Functional Description
The CM2400-02/03/04 USB Transceiver supports 3 dif-
ferent power supply configurations, which can be con-
figured dynamically. Table 1 details the various
configurations. In Normal Mode the internal regulator
produces 3.3V from VBUS to power the internal drivers
and receivers associated with the USB protocol.
D- lines while in sharing mode. In this mode, VP and
VM are driven high while RCV and USB_DET are
driven low.
In Disable and Sharing Mode, all input/output pins fol-
low the states defined in Table 2.
VBUS
Connected
Connected
Not Connected
VCC
Connected
Not Connected
Connected
CONFIGURATION
Normal Mode
Disable Mode
Sharing Mode
Table 1: Power Supply Connections
There are three power supply configurations for the
CM2400-02/03/04: Normal mode, Disable mode and
Sharing mode. These three modes can be changed
dynamically.
Normal mode occurs when the VCC and VBUS inputs
are both connected to a source. VBUS is tied to a 5V
source for 5V operation. The internal regulator of the
CM2400-02/03/04 provides 3.3V output on VREG. The
VCC input is connected to an independent source that
can range from 1.65V to 3.6V.
When VCC is not connected and VBUS is connected,
the device is in Disable mode. The D+ and D- pins are
in tri-state and power consumption drops to a suspend
state level.
In Sharing mode, VCC is connected while VBUS is
below 3.6V. The D+ and D- pins are in tri-state and the
CM2400-02/03/04 allows external signals (≤3.6V) to
share these two lines. The CM2400-02/03/04 is
designed to draw almost zero current from the D+ and
PIN
VBUS
VREG
VCC
VPU
D+, D-
VP , VM
RCV
USB_DET
Inputs
Sharing Mode
State
VBUS < 3.6V
Pulled Down
Present
High-Z (off)
High-Z
H
L
L
High-Z
Disable Mode
State
4.1V to 5.5V
3.3V Out
Not Present
High-Z (off)
High-Z
Invalid
Invalid
Invalid
High-Z
Table 2: Pin States in Disable or Sharing Mode
Table 3 lists the functions of the modes associated with
suspend and OE pins. When Suspend is low and OE is
high, signal levels on D+ and D- are determined by
other USB devices and pull-up/down resistors. In Sus-
pend Mode (SPND = HIGH) the differential receiver is
inactive and output RCV is always LOW. Out of sus-
pend signaling is detected via the single-ended receiv-
ers VP and VM. During suspend and while the output is
still enabled (OE = LOW), D+ and D- lines are driven to
their intended states.
SUSPEND
L
L
H
OE
L
H
L
HH
D+ / D-
RCV VP/VM
Function
Driver & Receiver Active Active Active Normal driving mode. Differential receiver active
Receiving
Active Active
Driver Tri-stated. Differential receiver active.
Driving
Inactive Active Driving during ’suspend’. Differential receiver inactive.
RCV=L
High-Z
Inactive Active
RCV=L
Low-power state.
Table 3: Function Selection.
© 2004 California Micro Devices Corp. All rights reserved.
08/24/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet CM2400-02.PDF ] | |
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