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PDF CM2400-05 Data sheet ( Hoja de datos )
| Número de pieza | CM2400-05 | |
| Descripción | Universal Serial Bus Transceiver | |
| Fabricantes | CMD | |
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PRELIMINARY
CM2400-05
Universal Serial Bus Transceiver with Level Translator
Features
• Complies with USB Specification Rev 1.1 & 2.0
• Supports Full Speed Mode (12Mbit/s)
• Integrated 5V to 3.3V regulator
• Bi-directional driver input/output pins
• Two single-ended receivers with hysteresis
• USB detection of VBUS via level translator
• Stable RCV output during SE0 condition
• Low power operation
• Supports 1.65 to 3.6V I/O voltage levels
• Full industrial operating range -40 to 85°C
• Available in tiny HBCC-16 and TQFN-16 packages
• Lead-free versions available
Applications
• Wireless Handsets
• Digital Still Cameras
• PDAs (Personal Digital Assistants)
• IAs (Information Appliances)
• Pin and functionally compatible with Philips
ISP1102
Product Description
The CM2400-05 Universal Serial Bus (USB) trans-
ceiver is fully compliant with USB specification, revi-
sions 1.1 and 2.0. It supports a speed of 12Mbits/s
(Full Speed Mode).
An internal level shifter allows interface to Application
Specific Integrated Circuits (ASICs) and Programma-
ble Logic Devices (PLDs) running at core voltages of
1.65V to 3.6V.
An internal 5V to 3.3V regulator is used to power the
CM2400-05 USB transceiver via the USB supply VBUS.
VM/VMO and VP/VPO are bi-directional interface pins. In
one mode they function as the differential driver input
data. In another mode they function as the output of
the single ended receivers. This mode is configured by
the OE pin.
This device is ideal for portable electronic devices such
as mobile phones, digital still cameras, PDAs (Personal
Digital Assistants) and IAs (Information Appliances).
The CM2400-05 is manufactured in small form-factor
16-lead HBCC or TQFN packages to conserve board
space and is available with optional lead-free finishing.
Simplified Block Schematic
VCC
USB_DET
ENUM
OE
SPND
VM/VMO*
VP/VPO*
RCV
* Pins are bi-directional based on OE state:
If OE = VCC, then VM/VMO and VP/VPO
are configured as outputs.
If OE = GND, then VM/VMO and VP/VPO
are configured as inputs.
Voltage
Detector
ENABLE
Voltage
Regulator
VBUS
VREG
VPU
D+
D-
GND
© 2004 California Micro Devices Corp. All rights reserved.
06/30/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com
1
1 page  
PRELIMINARY
CM2400-05
Specifications (cont’d)
ELECTRICAL OPERATING CHARACTERISTICS (CONT’D)
Static Operating Characteristics (cont’d)
Analog I/O Pins (VBUS = 4.1V to 5.5V; VCC = 1.65V to 3.6V)
SYMBOL PARAMETER
CONDITIONS
MIN TYP
VDI Differential receiver input sensi- | VI(D+) - VI(D-) |
tivity
0.2
VCM Differential receiver
common mode voltage
0.8
VIL Single-ended receiver
logic LOW input voltage
OE = logic "1"
VIH Single-ended receiver
logic HIGH input voltage
OE = logic "1"
2.0
VHYS
Single-ended receiver
Hysteresis voltage
OE = logic "1"
0.4
VOL Logic LOW output voltage
RL = 1.5kΩ tied to +3.6V
VOH Logic HIGH output voltage
RL = 15kΩ tied to GND
2.8
ILZ OFF-state leakage current
CIN Transceiver Capacitance
Pin to GND
10
RSW
Internal switch resistance at
VPU
30
ZDRV
Driver output impedance
Measured with steady-state drive; See Note 33
(includes 33 ohm 1% resistor) 3
39
MAX
2.5
0.8
0.7
0.3
3.6
±1
44
UNITS
V
V
V
V
V
V
V
µA
pF
Ω
Ω
Dynamic Operating Characteristics:
Analog I/O Pins (VBUS = 4.1 to 5.5V; VCC = 1.65 to 3.6V)
Driver Characteristics & Timings (Full-speed mode only)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
tFR
tFF
FRFM
VCRS
Rise time
Fall time
Differential rise / fall time match-
ing (tFR/tFF)
Output signal crossover
voltage
CL = 50 to 125pF, measured 10% to 90%
(VOH-VOL); See Figure 6
CL = 50 to 125pF, measured 10% to 90%
(VOH-VOL); See Figure 6
Excluding the first transition from idle state
Excluding the first transition from idle state;
See Figure 9
4
4
90
1.3
20 ns
20 ns
110 %
2.0 V
tPLH(DRV)
tPHL(DRV)
Driver propagation delay (VO/
VPO ➔ D+/D-, FSEO/VMO ➔
D+/D-
LOW-to-HIGH transition; See Figure 9
HIGH-to-LOW transition; See Figure 9
18 ns
18 ns
tPHZ Driver disable delay
tPLZ (OE ➔ D+/D-)
tPZH Driver enable delay
tPZL (OE ➔ D+/D-)
HIGH-to-OFF; See Figure 7
LOW-to-OFF; See Figure 7
OFF-to-HIGH; See Figure 7
OFF-to-LOW; See Figure 7
18 ns
18 ns
15 ns
15 ns
Note 3: 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.
06/30/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com
5
5 Page 
PRELIMINARY
CM2400-05
Functional Description (cont’d)
Detailed in Table 4 is the differential result for all varia-
tions on VP/VPO and VM/VMO.
VP/VPO
L
L
H
H
VM/VMO
L
H
L
H
Result
Logic ‘0’
SE0
Logic ‘1’
SE0
Table 4: Operating Mode (OE = L)
Table 5 details the receiving function when OE is HIGH
(driver disabled). RCV denotes the signal level on the
output RCV just before an SE0 state occurs. This level
is stable during the SE0 period.
Detection of a VBUS voltage is accomplished via an
internal Comparator with hysteresis. The output from
this Comparator is fed via the level translator to ensure
compatibility with processor core voltages and output
to pin USB_DET. When VBUS is over 4.1 volts
USB_DET is HIGH. When VBUS is under 3.6 volts
USB_DET is LOW.
The CM2400-05 USB transceiver includes an enumer-
ation pin (ENUM) which internally connects VPU to
VREG when enabled. This allows a processor running
at a core voltage different than 3.3V to switch the pull-
up resistor in and out without the need for external cir-
cuitry.
D+/D-
Differential Logic ’0’
Differential Logic ’1’
SE0
RCV
L
H
RCV*
VP
L
H
L
VM
H
L
L
Table 5: Receiving Function (SPND = L)
Note 1: Denotes RCV is stable in last state before
SE0 condition.
© 2004 California Micro Devices Corp. All rights reserved.
06/30/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.calmicro.com 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet CM2400-05.PDF ] | |
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