ES2839/ES2840
V.90/V.92 PCI HSP Modem Solution
Product Brief
ESS Technology, Inc.
FEATURES
DESCRIPTION
The ES2839/ES2840 is a high-performance, two-chip, hostbased modem solution that delivers high connectivity and
throughput, using a solid-state DAA instead of a traditional
transformer DAA. The chipset consists of the ES2839 TeleDrive
modem chip and the ES2840, its accompanying high-voltage,
solid-state DAA device. Together, the ES2839 and ES2840
devices comprise a very low-cost modem solution for add-in
cards, desktops, and notebooks.
The ES2839 modem is capable of send/receive data and fax,
supports telephone answering machine (TAM), and is capable of
data/fax/voice call discrimination. With its built-in ACPI and
D3cold wake-on-ring support, the ES2839, plus the ES2840,
forms an ideal modem solution for notebooks and batteryoperated devices.
The ES2839 includes a PCI bus interface, codec, and lowvoltage, solid-state DAA. It also includes ADC and DAC
conversions of modem/voice signal data and provides the
interface and control logic needed to transfer data between its
serial I/O terminals and the PCI interface.
The ES2840, the high-voltage DAA device, handles the linemonitoring and filtering functions, while also protecting the
signaling characteristics, performing all AC and DC functions,
and interfacing with the line side of tip and ring operations.
The ES2839/2840 modem solution meets all requirements for
Microsoft WHQL certification, as well as V.250, V.251, and V.253
commands
The ES2839 is available in a 100-pin low-profile quad flat pack
(LQFP) package. The ES2840 is available in an industrystandard 20-pin super small outline pack (SSOP) package.
• V.90/V.92 analog data/fax/TAM modem
• Data mode capabilities:
—–
—–
V.90/V.92: 56 kbps
ITU-T V.34: 33.6 kbps and fallbacks
• Fax mode capabilities:
—–
—–
ITU-T V.17, V.29, V.27ter, and V.21ch2
Group 3 (TIA/EIA-578 Class 1 and Class 2)
• Requires minimum 166-MHz Pentium with MMX technology
• PC99/PC2001-compliant with support for V.250, V.251, and
•
•
•
•
•
•
V.253 commands
V.80 (H.324 software-stack-compatible)
Buzzer generator feature generates oscillation on handshaking
Caller ID
Data/fax/voice call discrimination
Worldwide homologation
Compliant with ACPI 1.0 and PCI Power Management Interface
1.0, supporting the D3cold wake-on-ring
• 16-bit ADC and DAC with built-in anti-aliasing and
•
•
•
•
•
•
reconstruction filters
Separate analog (5V) and digital (3.3V with 5V tolerance for
digital circuits) power supplies
Internal PLL, requiring a lower frequency crystal for 18.816-MHz
input
EEPROM interface for subsystem vendor ID
Supports Microsoft Windows Unimodem V and TAPI
specifications
Supports Microsoft Windows 98/SE/ME/2000
Supports Microsoft Windows NT 4.0
SYSTEM BLOCK DIAGRAM
Figure 1 shows the ES2839/ES2840 system block diagram.
ES2839 HSP MODEM
PCI AND
MINI PCI
BUS
PCI I/F
LOW-VOLTAGE
DAA
EEPROM
I/F
MC‘97
CODEC
EEPROM
ES2840 HIGHVOLTAGE DAA
PHONE
LINE
XTAL
Figure 1 ES2839/ES2840 System Block Diagram
ESS Technology, Inc.
SAM0341-041101
1
ES2839/ES2840 PRODUCT BRIEF
PINOUT
VDD
GND
OSCO
OSCI
VCC
DSPK /PF11
CLKRUN #
PF9
PF8
PF7
GND
D6
GND
AV DD
D5
D3
D4
KRXN
KRXP
AGND
ES2839S
100-Pin LQFP
CLIM
D1
D2
VDD
D3
D4
LCOM
D5
D6
CPX
1
2
3
4
5
6
7
8
9
10
ES2840J
20-pin
SSOP
20
19
18
17
16
15
14
13
12
11
PF5
PF4
LCS/PF3
PF2
VDD
SECS
SECLK
SEDI
SEDO
GND
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
VDD
CBE0#
AD8
AD9
AD10
AD11
AD12
AD13
GND
AD15
AD14
FRAME#
GND
IRDY#
TRDY#
DE V S EL #
STOP#
PAR
CBE1#
AD23
AD22
AD21
AD20
AD19
AD18
AD17
AD16
VDD
CBE2#
CBE3#
VDD
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
TXN
TXP
AGND
AVDD
VAUX
PF0
PME#
VAUXP
RST#
INTA#
VDD
PCICLK
GND
AD31
AD30
AD29
AD28
AD27
AD26
AD25
AD24
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IDSEL
GND
D1
KTXP
KTXN
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
D2
VCM
VREF
RXP
RXN
Figure 2 shows the ES2839 and ES2840 pinout diagrams.
TOUT
GAIN
LINE
LINEI
INA
INB
TER1
TER2
SET
CPX\
Figure 2 ES2839 and ES2840 Pinout Diagrams
2
SAM0341-041101
ESS Technology, Inc.
ES2839/ES2840 PRODUCT BRIEF
PIN DESCRIPTIONS
Table 1 lists the ES2839 pin descriptions, and Table 2 lists the
ES2840 pin descriptions.
Table 1 ES2839 Pin Descriptions
Name
Pin Number
I/O
1, 13, 21, 31
I/O
Multiplexed bus command/byte enable pins. These pins indicate cycle type during the address phase of a transaction.
They indicate active-low byte enable information for the current data phase during the data phases of a transaction.
These pins are inputs during slave operation and outputs during bus mastering operation.
2
I
Initialization device select, active-high. This pin is used as a chip select during PCI configuration read and write cycles.
GND
3, 15, 22, 41,
52, 61, 64, 91
G
AD31:0
4:11, 23:30,
33:40, 92:99,
I/O
VDD
12, 32, 46, 51,
58, 89, 100
P
14
I/O
Cycle frame, active-low. The current PCI bus master drives this pin to indicate the beginning and duration of a
transaction.
16
I/O
Initiator ready, active-low. The current PCI bus master drives this pin to indicate that, as the initiator, it is ready to transmit
or receive data (and complete the current data phase).
17
I/O
Target ready, active-low. The current PCI bus master drives this pin to indicate that, as the target device, it is ready to
transmit or receive data (and complete the current data phase)
18
I/O
Device select, active-low. The PCI bus target device drives this pin to indicate that it has decoded the address of the
current transaction as its own chip select range.
19
I/O
Stop transaction, active-low. The current PCI bus target drives this pin active to indicate a request to the master to stop
the current transaction.
20
I/O
Parity, active-high. Indicates even parity across AD[31:0] and C/BE[3:0]# for both address and data phases. The signal is
delayed one PCI clock from either the address or data phase for which parity is generated.
SEDO
42
I
Serial EPROM data output pin with internal pullup.
SEDI
43
O
Serial EPROM data input.
SECLK
44
O
Serial EPROM data clock input pin with internal pulldown.
C/BE3:0#
IDSEL
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
PAR
SECS
Definitions
Digital ground.
Address and data pins AD31:0.
Digital voltage pins [VDD (3.3V)].
45
O
Serial EPROM chip select pin with internal pulldown.
47, 49, 50,
55:53,
I/O
PF2, PF4, PF5, and PF[7:9] general-purpose programmable bidirectional flag pins. Can be used for interfacing with a
telephone or other device, performing such functions as phone-off-hook, phone-on-hook, ring, and caller ID. Refer to pin
descriptions of pins 48 and 57 for preprogrammed telephone interface pins.
48
I
DSPK/PF11
57
I/O
OSCI
59
I
18.816-MHz crystal oscillator input.
OSCO
60
O
18.816-MHz crystal oscillator output.
D[6:5]
63, 64
I/O
Isolation signal outputs.
AVDD
65, 82
P
Analog voltage pins [AVDD (5V)].
PF[9:7],
PF[5:4] and
PF[2]
LCS/PF3
AGND
Local current sense input, pulled to ground through 4.7k Ω resistor. Otherwise, is PF# general-purpose programmable
flag I/O pin.
DSPK/PF11 modem speaker digital output.
68, 81
G
Analog ground.
66, 67, 75, 76
I
No connect.
KRXP
69
O
Low-voltage DAA analog differential positive output.
KRXN
70
O
Low-voltage DAA analog differential negative output.
RXN
71
I
Codec analog differential negative input. The DC level is Vcm, and the full-scale input is either 0.22 Vp-p ±5% or 1.1V
p-p±5%, depending on the gain setting.
RXP
72
I
Codec analog differential positive input. The DC level is Vcm, and the full-scale input is either 0.22 Vp-p ±5% or 1.1V
p-p±5%, depending on the gain setting.
VREF
73
O
Voltage reference bypass. Has a range of 1.2356V±5%. Bypass to AGND with 0.1-µF ceramic chip capacitor parallel
with 10-µF tantalum capacitor.
VCM
74
O
Common mode voltage bypass. Has a range of 2.16V±5%. Bypass to AGND with 0.1-µF ceramic chip capacitor parallel
with 10-µF tantalum capacitor.
KTXP
77
I
Low-voltage DAA analog differential positive input.
NC
ESS Technology, Inc.
SAM0341-041101
3
ES2839/ES2840 PRODUCT BRIEF
Table 1 ES2839 Pin Descriptions (Continued)
Name
Pin Number
I/O
KTXN
78
I
Low-voltage DAA analog differential negative input
Definitions
TXN
79
O
Codec negative analog output. The DC level is Vcm, and the full-scale ac output is 2.8V p-p±5%. The maximum loading
is 1k Ω, in parallel with 20 pF for modem applications. For audio applications with low-impedance load, the maximum
distortion-free (THD <–60-db) current is 10 mA rms.
TXP
80
O
Codec positive analog output. The DC level is Vcm, and the full-scale ac output is 2.8V p-p±5%. The maximum loading is
1k Ω, in parallel with 20 pF for modem applications. For audio applications with low-impedance load, the maximum
distortion-free (THD <–60-db) current is 10 mA rms.
VAUX
83
I
Power to device during implementation of the D3cold state required by PCI Power Management Interface specification.
PF0
84
I
Pulled to VDD through a 4.7k Ω resistor.
PME#
85
O
Power management enable interrupt output to wake up the system.
86
I
VAUX support detection. VAUXP pin is driven high to indicate that ACPI is supported with D3cold state. No support when
driven low.
RST#
87
I
Active-low ES2839 reset input.
INTA#
88
O
Interrupt request, active-low. This pin is the level triggered interrupt pin dedicated to servicing internal device interrupt
sources.
PCICLK
90
I
System bus clock input.
VAUXP
Table 2 ES2840 Pin Descriptions
Names
Pin Numbers
I/O
1
I/O
CLIM
D[1:2], D[5:6]
Definitions
Complex impedance termination pulldown.
2:3, 8:9
I
Isolation signal inputs.
VDR
4
P
DC supply input.
D[3:4]
5, 6
O
Isolation signal outputs.
LCOM
7
O
Line side common ground reference.
10, 11
I/O
DC current limit mode pulldown (pin 10) and 600Ω impedance termination pull-down (pin 11)
12
O
DC reference filter.
13, 14
I/O
Voltage termination controls.
CPX, CPX\
SET
TER[2:1]
IN{A:B]
15, 16
I
Ring and Caller ID signal inputs.
LINEI, LINE
17, 18
I
Line AC signal input (pin 17) and line DC signal input (pin 18).
GAIN
19
O
Transmit gain control.
TOUT
20
O
Transmit gain output.
ORDERING INFORMATION
Descriptions
Part Numbers
ES2839S
V.90/V.92 PCI HSP Modem
100-pin LQFP
ES2840J
Modem High-Voltage DAA
20-pin SSOP
ESS Technology, Inc.
48401 Fremont Blvd.
Fremont, CA 94538
Tel: (510) 492-1088
Fax: (510) 492-1898
4
Packages
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retrieval system, transmitted, or translated in any form or
by any means, electronic, mechanical, manual, optical, or
otherwise, without the prior written permission of ESS
Technology, Inc.
ESS Technology, Inc. assumes no responsibility for any
errors contained herein.
ESS Technology, Inc. makes no representations or
warranties regarding the content of this document.
All other trademarks are owned by their respective
holders and are used for identification purposes only.
TeleDrive is a registered trademark of ESS Technology, Inc.
(P) U.S. patents pending.
All specifications are subject to change without prior
notice.
© 2001 ESS Technology, Inc. All rights reserved.
SAM0341-041101